Forward Citations = 39

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10 inventors (with patents filed for the assignee):

Yoshihiro Suzuki (4 out of 4 patents)

Toshio Ogiwara (2 out of 2 patents)

Masaaki Kudo (2 out of 2 patents)

4. Morton S Gottlieb (2 out of 2 patents)

5. Toshiro Higuchi (1 out of 53 patents)

6. Shigeru Tanoue (1 out of 1 patent)

7. Yasuhiro Tsukamoto (1 out of 2 patents)

8. Hazime Izumi (1 out of 1 patent)

9. Minoru Tanaka (1 out of 1 patent)

10. Masaharu Hoshina (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 5901772 - Method for casting pistons (1999-05-11),

2. 5028493 - Aluminum alloy locally having a composite portion (1991-07-02),

3. 5022294 - Cutting apparatus for a noncircular cross section (1991-06-11),

4. 5013610 - Heat resisting member reinforced locally by an inorganic fiber and a (1991-05-07),

5. 4987867 - Piston for internal combustion engines (1991-01-29),

6. 4971003 - Piston of aluminum alloy for internal combustion engines (1990-11-20),

7. 4932285 - Non-rotating hub in steering wheel assembly (1990-06-12),

8. 4785194 - Multiple switch control system (1988-11-15),

9. 4737656 - Multiple switch control system (1988-04-12),

Company Overview

Izumi Industries, Ltd. is a leading Japanese company specializing in the design and manufacturing of high-quality precision tools and equipment for various industries. With over 50 years of experience, Izumi has established a strong reputation for innovation, reliability, and customer satisfaction. Their product range includes hydraulic tools, electric tools, and industrial robots, all designed to meet the highest standards of performance and durability.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#1 in Kawagoe

#4,699 in Japan

Kawagoe, Japan

Izumi Industries, Ltd.

Forward Citations = 39

10 inventors:

Yoshihiro Suzuki (4 out of 4 patents)

Toshio Ogiwara (2 out of 2 patents)

Masaaki Kudo (2 out of 2 patents)

4. Morton S Gottlieb (2 out of 2 patents)

5. Toshiro Higuchi (1 out of 53 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Izumi Industries, Ltd.. Retrieved from https://idiyas.com/company/izumi-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]