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For the Inventor, By the Inventor

Osaka, Japan

Okumura Corporation


USPTO Granted Patents = 12

Forward Citations = 138

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25 inventors (with patents filed for the assignee):

goldMedal Ikuo Shimoda (2 out of 16 patents)

silverMedal Masami Mochimaru (2 out of 8 patents)

bronzeMedal Susumu Otsuka (2 out of 2 patents)

4.  Nobuyasu Kawai (2 out of 2 patents)

5.  Susumu Murakami (2 out of 2 patents)

6.  Mitsuru Miyazaki (1 out of 68 patents)

7.  Hiroshi Saotome (1 out of 49 patents)

8.  Satoshi Fujita (1 out of 7 patents)

9.  Kiyoharu Suzuki (1 out of 2 patents)

10.  Kunio Hayakawa (1 out of 1 patent)

11.  Takafumi Fujita (1 out of 11 patents)

12.  Toshinori Asahi (1 out of 2 patents)

13.  Yoshio Ebara (1 out of 1 patent)

14.  Kurimoto Kurimoto (1 out of 1 patent)

15.  Kanemasa Inaba (1 out of 1 patent)


12 patents:

1. 6123313 - Seismic isolation apparatus (2000-09-26),
2. 5934029 - Base isolator having mutually eccentric rotators (1999-08-10),
3. 5544452 - Method of and apparatus for damping the vibration of a building (1996-08-13),
4. 5358060 - Successive hole boring machine and lost strike preventing device for (1994-10-25),
5. D325833 - Desk (1992-05-05),
6. 4721339 - Rock crushing device and a method thereof (1988-01-26),
7. 4681170 - Rock drills for drilling continuously arrayed bores (1987-07-21),
8. 4673218 - Tunnel excavation method (1987-06-16),
9. 4666336 - Method of and apparatus for building thin lining on tunnel (1987-05-19),
10. 4436167 - Method of excavating a pile hole and an apparatus therefor (1984-03-13),
11. 4407622 - Soil transporting vehicle for transporting soils excavated by shield (1983-10-04),
12. 4392744 - Method of and apparatus for determining angular and transversal (1983-07-12),
Company Overview
Okumura Corporation, headquartered in Osaka, Japan, specializes in the development and manufacturing of advanced electronic components and systems. The company focuses on a diverse range of technologies, including telecommunications, industrial automation, and energy solutions. With a commitment to innovation, Okumura leverages its expertise to deliver high-quality products that meet the evolving needs of various industries. The organization is recognized for its contributions to enhancing connectivity and efficiency in both local and global markets.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

12 Patents

#425 in Osaka

#3,934 in Japan

#48,129 in the World

Osaka, JP
Osaka, Japan

Okumura Corporation

Forward Citations = 138

25 inventors:

goldMedal Ikuo Shimoda (2 out of 16 patents)

silverMedal Masami Mochimaru (2 out of 8 patents)

bronzeMedal Susumu Otsuka (2 out of 2 patents)

4.  Nobuyasu Kawai (2 out of 2 patents)

5.  Susumu Murakami (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Okumura Corporation. Retrieved from https://idiyas.com/company/okumura

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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