% Expired Patents = 14.3

Forward Citations = 29

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5 inventors (with patents filed for the assignee):

Mitsuru Hirose (4 out of 4 patents)

Keizo Takahashi (1 out of 7 patents)

Nobuo Okuda (1 out of 1 patent)

4. Yasushi Nakamura (1 out of 1 patent)

5. Takahiro Hirose (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6618989 - Method for growing ornamental plants by hydroponic cultivation and an apparatus therefor (2003-09-16),

2. 6357177 - Bottom sand for growing aquatic plants and aquariums for growing aquatic plants using bottom sand (2002-03-19),

3. 6263615 - Bottom soils and filtering media for rearing fresh-water fish or hydroponically cultivated plants and water tanks using such bottom soils and filtering media (2001-07-24),

4. 6149991 - Ornaments (2000-11-21),

5. 6112459 - Bottom soils and filtering media for rearing fresh-water fish or (2000-09-05),

6. 6015216 - Fish tank with illuminating light guide device (2000-01-18),

7. 5581916 - Excavating, sieving and grading device for working crawler (1996-12-10),

Company Overview

Hirose Co., Ltd. is a Japanese company specializing in the design, manufacture, and distribution of electrical connectors for a wide range of industries including automotive, telecommunications, and consumer electronics. With a history dating back to 1937, Hirose is known for its high-quality products and innovative technology. The company's global presence includes offices and production facilities in Asia, Europe, and the Americas.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#5 in Narashino

#5,459 in Japan

Narashino, Japan

Hirose Co., Ltd.

Forward Citations = 29

5 inventors:

Mitsuru Hirose (4 out of 4 patents)

Keizo Takahashi (1 out of 7 patents)

Nobuo Okuda (1 out of 1 patent)

4. Yasushi Nakamura (1 out of 1 patent)

5. Takahiro Hirose (1 out of 1 patent)

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