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For the Inventor, By the Inventor

Tokyo, Japan

Clean Planet Inc.


USPTO Granted Patents = 10


Trademarks = 2

Forward Citations = 5

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16 inventors (with patents filed for the assignee):

goldMedal Hideki Yoshino (7 out of 11 patents)

silverMedal Yasuhiro Iwamura (7 out of 7 patents)

bronzeMedal Takehiko Ito (7 out of 12 patents)

4.  Jirota Kasagi (5 out of 5 patents)

5.  Kazuyuki Otani (3 out of 3 patents)

6.  Shotaro Hirano (3 out of 3 patents)

7.  Masanao Hattori (2 out of 2 patents)

8.  Tetsuharu Ibaraki (2 out of 14 patents)

9.  Masahide Ise (2 out of 2 patents)

10.  Kazunobu Inoue (1 out of 1 patent)

11.  Hidetaka Yamamoto (1 out of 1 patent)

12.  Kenichi Katakawa (1 out of 1 patent)

13.  Atsushi Kobayashi (1 out of 87 patents)

14.  Ryoki Sato (1 out of 2 patents)

15.  Nobuyuki Ishizaki (1 out of 6 patents)


10 patents:

1. 12747893 - Heat generation cell, heat generation device, and heat utilization system (2026-09-29),
2. 12618592 - Heat generation device, heat utilization system and film-like heat generation element (2026-05-05),
3. 12287126 - Heat utilization system and heat generating device (2025-04-29),
4. 12247766 - Heat generating method (2025-03-11),
5. 12209747 - Boiler (2025-01-28),
6. 11971199 - Heat generating device and method for generating heat (2024-04-30),
7. 11499789 - Heat utilization system, and heat generating device (2022-11-15),
8. 11371695 - Boiler (2022-06-28),
9. 11326772 - Boiler with a heat generation body that stores hydrogen (2022-05-10),
10. 10641525 - Heat generating system (2020-05-05),
Company Overview
Clean Planet Inc. is a Tokyo-based company specializing in innovative solutions for environmental sustainability. The organization focuses on developing advanced technologies aimed at waste management and resource recovery, contributing to a circular economy. With a commitment to reducing environmental impact, Clean Planet engages in research and development across various sectors, including renewable energy and eco-friendly materials, positioning itself as a leader in promoting sustainable practices in Japan and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#1,914 in Tokyo

#4,400 in Japan

#55,986 in the World

Tokyo, JP
Tokyo, Japan

Clean Planet Inc.

Forward Citations = 5

16 inventors:

goldMedal Hideki Yoshino (7 out of 11 patents)

silverMedal Yasuhiro Iwamura (7 out of 7 patents)

bronzeMedal Takehiko Ito (7 out of 12 patents)

4.  Jirota Kasagi (5 out of 5 patents)

5.  Kazuyuki Otani (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Clean Planet Inc.. Retrieved from https://idiyas.com/company/clean-planet

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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