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For the Inventor, By the Inventor

Yamagata, Japan

Tpr Industry Co., Ltd.

Calculating rank
USPTO Granted Patents = 17


Forward Citations = 9

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31 inventors (with patents filed for the assignee):

goldMedal Akira Sato (7 out of 13 patents)

silverMedal Koichi Hatakeyama (5 out of 7 patents)

bronzeMedal Hideki Aizawa (3 out of 3 patents)

4.  Takashi Sato (2 out of 12 patents)

5.  Takashi Oizumi (2 out of 3 patents)

6.  Akira Sayama (2 out of 2 patents)

7.  Masami Horigome (2 out of 9 patents)

8.  Mizuki Yamashita (2 out of 2 patents)

9.  Shin Moriyama (2 out of 2 patents)

10.  Hidemi Kato (1 out of 11 patents)

11.  Yugo Takano (1 out of 3 patents)

12.  Koji Kamata (1 out of 5 patents)

13.  Tomoki Takiguchi (1 out of 2 patents)

14.  Mako Abe (1 out of 2 patents)

15.  Seiji Tamaki (1 out of 5 patents)


17 patents:

1. 12521788 - Drip prevention device for pressurized pouring furnace (2026-01-13),
2. 12485476 - Casting system (2025-12-02),
3. 12397343 - Mold cooling device, cast manufacturing system, and cast manufacturing method (2025-08-26),
4. 12305590 - Spiny liner and manufacturing method of same, and method of determining bonding strength (2025-05-20),
5. 12121958 - Centrifugal casting mold and centrifugal casting mold assembly device (2024-10-22),
6. 12116951 - Cylinder liner and cylinder bore (2024-10-15),
7. 11499498 - Cylinder liner and manufacturing method for same (2022-11-15),
8. 11047333 - Cylinder liner, block manufacturing method and cylinder liner manufacturing method (2021-06-29),
9. 10907570 - Cylindrical member (2021-02-02),
10. 10876494 - Cylinder liner, block manufacturing method and cylinder liner manufacturing method (2020-12-29),
11. 10837399 - Method of manufacturing internal combustion engine, internal combustion engine, and connected cylinder (2020-11-17),
12. 10596624 - Cast-iron cylindrical member and composite structure (2020-03-24),
13. 10428407 - Cylindrical member made of flake graphite cast iron (2019-10-01),
14. 10403900 - Method for producing porous graphite, and porous graphite (2019-09-03),
15. 9089893 - Cylinder liner for insert casting use (2015-07-28),
Company Overview
Tpr Industry Co., Ltd. is a prominent manufacturer based in Yamagata, Japan, specializing in advanced rubber and plastic products. The company focuses on developing high-quality materials and components for various industries, including automotive, electronics, and industrial applications. Tpr Industry is committed to innovation and sustainability, leveraging cutting-edge technology to enhance product performance and meet the evolving needs of its global clientele. Their expertise in material science positions them as a key player in the manufacturing sector.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

17 Patents

#6 in Yamagata

#3,230 in Japan

#35,948 in the World

Yamagata, JP
Yamagata, Japan

Tpr Industry Co., Ltd.

Forward Citations = 9

31 inventors:

goldMedal Akira Sato (7 out of 13 patents)

silverMedal Koichi Hatakeyama (5 out of 7 patents)

bronzeMedal Hideki Aizawa (3 out of 3 patents)

4.  Takashi Sato (2 out of 12 patents)

5.  Takashi Oizumi (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tpr Industry Co., Ltd.. Retrieved from https://idiyas.com/company/tpr-industry-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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