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For the Inventor, By the Inventor

Gunma, Japan

Orihiro Co., Ltd.


USPTO Granted Patents = 11

% Expired Patents = 27.3


Trademarks = 2

Forward Citations = 238

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10 inventors (with patents filed for the assignee):

goldMedal Orihiro Tsuruta (7 out of 24 patents)

silverMedal Yasuo Oki (4 out of 4 patents)

bronzeMedal Shinji Matsunaga (2 out of 4 patents)

4.  Tomohiro Uesugi (1 out of 2 patents)

5.  Katsumi Nagai (1 out of 3 patents)

6.  Akira Funaki (1 out of 1 patent)

7.  Yuji Fukushima (1 out of 1 patent)

8.  Katsuji Iizuka (1 out of 1 patent)

9.  Katsuzi Iizuka (1 out of 1 patent)

10.  Yasugi Zinbo (1 out of 1 patent)

11.  Akira Yamaguchi (8 patents)

12.  Akira 4-106-206 Kotobuki Funaki (0 patent)

13.  Yuji 3-18-507 Higashi 1-Chome Fukushima (0 patent)

14.  Katsuji c/o Orihiro Co Ltd Iizuka (0 patent)

15.  Orihiro c/o Orihiro Co Ltd Tsuruta (0 patent)


11 patents:

1. 9663283 - Packaging bag (2017-05-30),
2. 7780354 - Pillow packaging bag, pillow type packaging body, heat seal bar for pillow packaging machine, and pillow packaging machine (2010-08-24),
3. 7325383 - Bag making and filling method using double film (2008-02-05),
4. 5463851 - Vertical-type filling and packaging machine (1995-11-07),
5. 5330076 - Filling connector and dischargeable bag (1994-07-19),
6. 5241804 - Vertical type forming, filling and closing machine for flexible package (1993-09-07),
7. 4662978 - Packed bag transverse sealing mechanism (1987-05-05),
8. 4622798 - Sealing mechanism for a packing machine (1986-11-18),
9. 4622793 - Movement-regulating mechanism for a sealing device (1986-11-18),
10. 4589247 - Apparatus for preventing creases in transverse sealing (1986-05-20),
11. 4564407 - Manufacturing method and manufacturing equipment for plastic air cell (1986-01-14),
Company Overview
Orihiro Co., Ltd. is a Japanese company based in Gunma, specializing in the development and manufacturing of health and wellness products. The organization focuses on dietary supplements, functional foods, and natural ingredients, leveraging advanced research in nutrition and health sciences. Orihiro is committed to enhancing quality of life through innovative solutions that promote health and well-being, catering to both domestic and international markets with a strong emphasis on quality and efficacy.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

11 Patents

#17 in Gunma

#4,137 in Japan

#51,761 in the World

Gunma, JP
Gunma, Japan

Orihiro Co., Ltd.

Forward Citations = 238

10 inventors:

goldMedal Orihiro Tsuruta (7 out of 24 patents)

silverMedal Yasuo Oki (4 out of 4 patents)

bronzeMedal Shinji Matsunaga (2 out of 4 patents)

4.  Tomohiro Uesugi (1 out of 2 patents)

5.  Katsumi Nagai (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Orihiro Co., Ltd.. Retrieved from https://idiyas.com/company/orihiro-company

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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