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For the Inventor, By the Inventor

Tokyo, Japan

Rasa Industries, Ltd.

Calculating rank
USPTO Granted Patents = 6



Forward Citations = 22

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13 inventors (with patents filed for the assignee):

goldMedal Koji Endo (3 out of 30 patents)

silverMedal Toshiki Kobayashi (2 out of 12 patents)

bronzeMedal Kazutoshi Isaji (2 out of 3 patents)

4.  Hideharu Takahashi (1 out of 15 patents)

5.  Tomohiro Inoue (1 out of 105 patents)

6.  Hiroshige Kikura (1 out of 2 patents)

7.  Katsumasa Araoka (1 out of 1 patent)

8.  Tadashi Narabayashi (1 out of 1 patent)

9.  Reiji Uchida (1 out of 1 patent)

10.  Nobuhiro Oshita (1 out of 1 patent)

11.  Tomohiko Yoshii (1 out of 1 patent)

12.  Sho Nagao (1 out of 1 patent)

13.  Takao Mitsui (1 out of 1 patent)


6 patents:

1. 12600909 - Etching solution composition (2026-04-14),
2. 12458938 - Mixing nozzle and contaminated gas purification device using mixing nozzle (2025-11-04),
3. 11712683 - Heat source device and method for using silver zeolite (2023-08-01),
4. 10434494 - Filtration material for filtered venting, and filtered venting device (2019-10-08),
5. 5884856 - Method and system for reclaiming aggregate from concrete waste material (1999-03-23),
6. 5699969 - Method and system for reclaiming aggregate from concrete waste material (1997-12-23),
Company Overview
Rasa Industries, Ltd. is a leading manufacturing company specializing in the production of innovative industrial components. With a strong emphasis on quality and efficiency, we provide reliable solutions to a wide range of industries. Our state-of-the-art facilities and experienced team ensure that we deliver top-notch products that meet our customers' requirements. Visit our website to learn more about our services and capabilities.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#2,469 in Tokyo

#5,990 in Japan

Tokyo, JP
Tokyo, Japan

Rasa Industries, Ltd.

Forward Citations = 22

13 inventors:

goldMedal Koji Endo (3 out of 30 patents)

silverMedal Toshiki Kobayashi (2 out of 12 patents)

bronzeMedal Kazutoshi Isaji (2 out of 3 patents)

4.  Hideharu Takahashi (1 out of 15 patents)

5.  Tomohiro Inoue (1 out of 105 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rasa Industries, Ltd.. Retrieved from https://idiyas.com/company/rasa-industries

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]
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