Forward Citations = 153

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10 inventors (with patents filed for the assignee):

Junichi Watanabe (1 out of 31 patents)

Yoshiharu Tanaka (1 out of 15 patents)

Kumiko Nishikawa (1 out of 2 patents)

4. Ryugen Yonemura (1 out of 8 patents)

5. Toshihiko Ogura (1 out of 1 patent)

6. Keiichi Nishimoto (1 out of 1 patent)

7. Hiroshi Hoshikawa (1 out of 6 patents)

8. Eiichi Nakamura (1 out of 1 patent)

9. Takashi Iitake (1 out of 1 patent)

10. Hiroaki Tanaka (1 out of 30 patents)

4 patents: Sort by Forward Citations

1. 6378772 - Road marker magnetizing method (2002-04-30),

2. 6317682 - Road information communicating system (2001-11-13),

3. 6246955 - Vehicle communication system dynamically allocating channels and a method for the same (2001-06-12),

4. 5160604 - Toxic substance-detecting system with fixed microorganism membrane for (1992-11-03),

Public Works Research Institute (PWRI) is a leading research organization in Japan that conducts research and development in the field of public works and infrastructure. With a focus on innovative solutions for sustainable development and disaster prevention, PWRI works to improve infrastructure systems and technologies.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

4 Patents

#5 in Ibaraki-ken

#7,416 in Japan

Ibaraki-ken, Japan

Public Works Research Institute