50th Anniversary
50 Years of Progress
Our History and the Evolution of Technology
SANWA CLEAN has continued to move forward in step with changing times by providing development capabilities centered on the audiovisual field of video and sound. From the transition from analog to digital, to shifts in the social environment including the bubble era, and the rapid advancement of IT and AI, we have continued to shape our business by identifying what was needed at each turning point in technology and demand.
In the field of video editing in particular, analog editing once carried out with video decks was rapidly replaced by computer-based digital editing, fundamentally transforming the editing process itself.
This transition brought major improvements in the performance and functions of editing systems and also reshaped production and operational methods. SANWA CLEAN did not view these changes as simply replacing equipment, but as an opportunity to rethink on-site workflows, quality, and operational stability, updating them into forms required for the next era.
Even as technology changes, our role remains the same: to create environments where information can be conveyed, delivered, and continuously used. That steady accumulation is at the core of SANWA CLEAN’s history.
ANNIVERSARY
Digitalization of Video and Audioand the Evolution of Communication Technology
SANWA CLEAN has experienced many major turning points, from the analog era to digitalization, and then into an age of rapidly advancing communication technology.
Throughout these changes, we built our business foundation around audiovisual technology and continuously updated quality and operational methods in line with technological progress.
Here, we look back on how video and audio equipment and technologies have evolved over the past 50 years, following the flow of each era.
1970s
Founded within Kamata Sanwa Kiden (4 staff members)
- Installation work for car wash systems at gas stations
- Filming commemorative ceremonies and other events on film in cooperation with a noted photographer
- Sales of health foods and teddy bear products
Relocated to Nippori S-Light Building (7 staff members)
Later moved to Nippori Masuo Building
- Automobile manufacturer
Vehicle underbody washing system / remote instruction system for motorcycle training - Japan Defense Agency
Planning and design of cable winding equipment for extremely cold environments (utility model) - Electrical equipment contractor
Development of conduit wire-pulling tools (utility model), powered rollers (utility model), powered wall rollers, and pipeline inspection camera vehicles
From Analog to Portable
Audio
AUDIO
- Advances in transistor technology made equipment smaller and lighter, shifting from vacuum-tube devices to more power-efficient transistor-based equipment
- In 1979, Sony introduced the Walkman, creating a culture of “taking music with you” and transforming listening into a personal experience
- The spread of cassette tapes made personal recording and editing more accessible, giving rise to mixtape culture
Visual
VISUAL
- Large analog CRT televisions were the mainstream display devices
- From the late 1960s into the 1970s, color television entered a period of wider adoption, accelerating the transition from black-and-white to color, with the 1964 Tokyo Olympics helping drive household penetration
- Remote controls also evolved from wired to wireless systems, shifting from ultrasonic to infrared technology
1980s
- Electrical equipment contractor
Automation of communication and wire-routing systems for tunnel cable work, development of connection structures for cap tire cables, design, manufacture, and validation of cable routing methods and equipment for the Chiba–Odaiba cable project, including lead pipe development, porcelain belt conveyance systems, and low-friction pipe restraint and fixing jigs, as well as waterproof connector development - Steelworks
Trough band caulking machine - Major plant-related company
Development of heavy tool mounting systems and powered support devices - Major electric utility company
Housing development for power transformers enabling aerial installation
The Digital Revolution
Audio
AUDIO
- The compact disc (CD) emerged in 1982, offering noise-free digital recording, improved durability, and ease of use, and became a dominant media format
- MIDI was introduced in 1983, establishing a standard that allowed instruments and computers to connect, revolutionizing music production environments
- Digital recording technology spread further, with hard-disk recording and the digitalization of studio environments progressing rapidly
1990s
- Electrical equipment contractor
Development of special bolt insertion/removal tools, shield machine direction control systems, and multi-stage wire stripping tools - Major plant-related company
Development of portable oxygen-deficiency prevention devices - Taiwan Power Company
Sales expansion and local production, with Taiwan patent acquisition - Railway company
Level crossing intrusion monitoring systems, station PA systems, and salt-damage-resistant platform speaker installation work - Nuclear power plant
Development of funnel drilling equipment - Facility contractor
Development of valve body replacement equipment for intermediate stop valves - Major electric utility company
Construction methods and video recording for wind power generation projects - Construction Ministry
Planning and installation work for sabo dam monitoring and communication systems
Visual
VISUAL
- Satellite broadcasting and CS/BS services began to spread, improving picture quality and expanding channel choices
- VHS video decks became commonplace, firmly establishing a recording culture in everyday life
2000s
- Electrical equipment contractor
Development of remote confirmation systems for de-energized distribution line work
Niigata Chuetsu Earthquake
- Major electric utility company / nuclear power plant
Response support for damage caused by the Niigata Chuetsu Earthquake - Railway company
Development of radio radiation equipment and visible light communication systems in collaboration with Keio University - Electrical equipment contractor
Human resource training center, support for company entry events, installation of large projectors, and gymnasium sound systems - Electrical equipment contractor
Teleconference systems
The Fusion of the Internet and Digital Technology
Audio
AUDIO
- The spread of the iPod (2001) and music distribution services shifted music from something “owned” to something “managed as data”
- Streaming services such as Spotify emerged, marking a major shift from ownership to access-based listening
- DAWs such as Pro Tools and Ableton Live became widely used, making full-scale music production on computers commonplace
Visual
VISUAL
- DVD and later Blu-ray became mainstream digital media formats
- LCD and plasma flat-panel televisions rapidly entered ordinary households, turning the “dream of a wall-mounted TV” into reality
- The launch of terrestrial digital broadcasting further advanced high-definition video
2010s–
The Great East Japan Earthquake
- Nuclear power plant
Procurement and handling guidance for radios for Fukushima workers, including products from other companies, and procurement, recovery coordination, and delivery of cable-routing work tools for Fukushima - Electrical equipment contractor
Design, manufacture, and installation of test towers for lifting equipment - Railway company
Implementation of forward-facing camera operation for the Ueno-Tokyo Line - Electrical equipment contractor
Development of cable housing pipe cutting devices
The Network and Mobile Era
Audio
AUDIO
- True wireless earphones such as AirPods became widely adopted, with advances in Bluetooth freeing users from cables
- High-resolution audio emerged and reignited interest in high-quality sound, with formats surpassing CD-level resolution becoming more common
- Smart speakers such as Amazon Echo and HomePod, combined with AI voice recognition, advanced the home audio experience
2020s–
- Electrical equipment contractor
Improvement patents for conductor exposure tools and the Furister K (patent / utility model)
July 2, 2026 — 50th Anniversary
Visual
VISUAL
- 4K and 8K televisions became increasingly widespread
- Streaming video services such as Netflix and YouTube became dominant
- Smartphones evolved into the most powerful everyday video devices, with high-quality cameras enabling shooting, editing, and distribution all on a single device
Image source: Sony Group Corporation
And Today
Video and audio have become predominantly digital from input through output, greatly changing both the volume of information handled and the speed required.
With the evolution of network technology, the high-speed transfer of large-scale data and real-time communication with remote locations have become standard. Meeting formats have evolved step by step, from telephone conferences to video conferences and now web-based meetings.
In recent years, cloud-based conference systems have become widespread, while environments that depend on dedicated lines are gradually declining.
The Future Direction of the Audiovisual Field
Technology continues to evolve. The essence remains the same.
The audiovisual field has rapidly evolved in terms of media formats, editing methods, and conferencing systems. Environments once centered on dedicated hardware have shifted toward computer-based systems, while faster communications and the spread of cloud technology have significantly changed installation methods and operational assumptions in the field.
At the same time, however, the essence of audiovisual communication has not changed. It is not simply about whether something can be seen or heard. It is a framework for delivering the right information to the right people at the right time in a form that can be used without confusion. Ease of operation, low risk of trouble, and an environment that anyone on-site can continue to use with confidence—this usability and operational stability remain at the core of value.
What SANWA CLEAN has always valued is creating environments that can be used smoothly in the field and operated stably, regardless of how technology changes. Rather than merely replacing equipment or responding to new technologies, we have spent many years building technical expertise and practical knowledge that encompass design, construction, operation, and maintenance. This ability to support environments that remain usable over time is the value of SANWA CLEAN as it reaches its 50th anniversary.
In the future, audiovisual systems will no longer remain limited to video and audio alone. Through networks, they will increasingly integrate with control and information delivery. As they expand into IoT, remote control, and information gathering, value beyond simple input and output will continue to grow.
Furthermore, advances in AI are bringing processing such as subtitles, translation, summarization, and content transformation into practical use, improving both operational efficiency and precision. In this changing environment, the key issue is not simply introducing equipment, but how to design, connect, and continuously operate systems in an optimized way. SANWA CLEAN will continue strengthening its knowledge base and technical foundation in order to provide audiovisual environments that clients can trust with confidence.
Development capabilities extending to special equipment and custom jigs
In addition to providing audiovisual solutions, our company has another important dimension: commissioned development projects handled by our technical development division. This includes the development of specialized cameras and the dedicated vehicles that carry them, as well as the design, development, and production of tools and jigs required by our clients.
There are many challenges in the field that cannot be solved with off-the-shelf products alone. Our role is to help organize ideas and objectives even when requests have not yet been fully defined, translate them into specifications, and shape them into practical solutions. Drawing on our long history of developing and continuously delivering products together with our clients, we will keep refining our ability to realize exactly what is needed, in the form it is needed, and connect that capability to the creation of new value.
The Direction SANWA CLEAN
Should Aim for in the Future
In order to respond to these changes, SANWA CLEAN intends to strengthen its knowledge base in communications, cloud technology, AI, and operational support, while also building a structure capable of providing added-value services that include operational design, maintenance, and training in addition to conventional equipment implementation.
Creation of Differentiated
Added Value
In addition to conventional audiovisual solutions, we will create new value by combining communications, AI, and IT, including operational support.
Understanding and Applying
AI, IT, and Communication Technologies
We will continue strengthening our technical capabilities and knowledge so that we can support not only implementation, but also operation after adoption, without hesitation in the face of new technologies.
Flexible Adaptability
to Emerging Technologies
We value a mindset of continual learning in response to rapidly changing markets and will update ourselves flexibly whenever needed.
Technical Development that
Turns Field Requirements into Reality
We respond to the development of specialized equipment, tools, and jigs, handling the process from design through production. We turn field needs into workable specifications.
Toward the Next 50 Years
Going forward, SANWA CLEAN will continue to standardize audiovisual solutions while advancing AI utilization trials, subscription-based operational support, human resource development, and partner collaboration, steadily building the practical strength needed for future business expansion.
At the same time, by deepening our engagement with AI and taking on new challenges in creating value through communications-based video and audio, we will continue strengthening the company as a whole.
Marking our 50th anniversary as a new point of departure, SANWA CLEAN will continue embracing change positively while creating audiovisual environments that clients can rely on with confidence.
And we will continue to remain a trusted brand partner for our clients into the future. We sincerely appreciate your continued support.
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