Koizumi Factory Corporation

Calculating rank

USPTO Granted Patents = 7

EPO Patents = 4

Forward Citations = 0

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7 inventors (with patents filed for the assignee):

Toshihiro Koizumi (7 out of 7 patents)

Hironori Ogawa (1 out of 27 patents)

Mio Omura (1 out of 1 patent)

4. Masaru Mizuochi (1 out of 1 patent)

5. Dankan Arekusanda Eriku Shoton (1 out of 1 patent)

6. Keiichi Osaku (1 out of 1 patent)

7. Saki Maeda (1 out of 1 patent)

8. Koizumi Toshihiro (0 patent)

7 patents: Sort by Forward Citations

1. 12497117 - Bell for bicycle (2025-12-16),

2. 11922914 - Desk bell (2024-03-05),

3. 11875668 - Information transmission system using bell (2024-01-16),

4. 11583119 - Drinking container used for toasting and drinking container serving as bell (2023-02-21),

5. 11498230 - Fastner (2022-11-15),

6. 11173618 - Fastner (2021-11-16),

7. 9230530 - Rolling element bell (2016-01-05),

Company Overview

Koizumi Factory Corporation is a leading manufacturer of high-quality industrial machinery and equipment. With a focus on innovation and efficiency, we provide a wide range of solutions for various industries. Our products are known for their reliability and durability, and we are committed to delivering exceptional service to our customers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#27 in Toyama 939-0643

#5,462 in Japan

Toyama, Japan

Koizumi Factory Corporation

Forward Citations = 0

7 inventors:

Toshihiro Koizumi (7 out of 7 patents)

Hironori Ogawa (1 out of 27 patents)

Mio Omura (1 out of 1 patent)

4. Masaru Mizuochi (1 out of 1 patent)

5. Dankan Arekusanda Eriku Shoton (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Koizumi Factory Corporation. Retrieved from https://idiyas.com/company/koizumi-factory

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]

4 patents (EPO):

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]