Forward Citations = 339

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8 inventors (with patents filed for the assignee):

Masahiro Yamada (3 out of 3 patents)

Masahiro Yamada (2 out of 103 patents)

Junichi Iwasawa (2 out of 3 patents)

4. Yuu Sasaki (2 out of 3 patents)

5. Masahiro Yamada (2 out of 20 patents)

6. Hideo Yagi (1 out of 2 patents)

7. Hiroyuki Inagawa (1 out of 1 patent)

8. Kiichi Sandow (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6349824 - Watertight equipment cover (2002-02-26),

2. 5996790 - Watertight equipment cover (1999-12-07),

3. 5588732 - Video lighting apparatus and electrode apparatus therefor (1996-12-31),

4. 5434018 - Battery pack for video lighting apparatus (1995-07-18),

5. 5105180 - Combination light unit and battery monitor device (1992-04-14),

6. 4924246 - Energizing system for video cameras and lights using adapter modules (1990-05-08),

7. 4881128 - Video camera and recorder system with illumination control features (1989-11-14),

Company Overview

Asahi Research Corporation is a leading market research firm specializing in consumer behavior and trends. With over 20 years of experience, we provide valuable insights and strategic recommendations to help companies make informed business decisions. Our team of expert analysts and researchers are dedicated to delivering high-quality research and unparalleled customer service.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#2,288 in Tokyo

#5,459 in Japan

Tokyo, Japan

Asahi Research Corporation

Forward Citations = 339

8 inventors:

Masahiro Yamada (3 out of 3 patents)

Masahiro Yamada (2 out of 103 patents)

Junichi Iwasawa (2 out of 3 patents)

4. Yuu Sasaki (2 out of 3 patents)

5. Masahiro Yamada (2 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Asahi Research Corporation. Retrieved from https://idiyas.com/company/asahi-research

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]