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For the Inventor, By the Inventor

Tokyo, Japan

Tokyo Weld Co., Ltd.

Calculating rank
USPTO Granted Patents = 18

% Expired Patents = 5.6


Forward Citations = 40

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25 inventors (with patents filed for the assignee):

goldMedal Tomoyuki Kojima (5 out of 5 patents)

silverMedal Masamichi Tsuchiya (4 out of 4 patents)

bronzeMedal Fukashi Ogasawara (3 out of 3 patents)

4.  Yoshihiko Yokoyama (2 out of 9 patents)

5.  Toshiro Higuchi (2 out of 3 patents)

6.  Hiroyuki Nabae (2 out of 2 patents)

7.  Minoru Chiba (2 out of 8 patents)

8.  Shigeru Matsukawa (2 out of 2 patents)

9.  Hiroaki Abe (2 out of 2 patents)

10.  Akira Saito (2 out of 2 patents)

11.  Isao Kobayashi (2 out of 2 patents)

12.  Takuma Umeno (1 out of 2 patents)

13.  Hiroaki Chaki (1 out of 1 patent)

14.  Noritoshi Nakanishi (1 out of 1 patent)

15.  Takahiko Iwazaki (1 out of 1 patent)


18 patents:

1. 12462539 - Analysis device and analysis method (2025-11-04),
2. 9838608 - Work visual inspection device and work visual inspection method (2017-12-05),
3. 9664243 - Gripper mechanism and movement mechanism (2017-05-30),
4. 9430841 - Defect inspection method (2016-08-30),
5. 9281111 - Electromagnetic actuator (2016-03-08),
6. 7931042 - Vacuum suction system and method of controlling the same (2011-04-26),
7. D543333 - Electronic part conveyor table (2007-05-22),
8. 7119299 - Work inspection system (2006-10-10),
9. 6988609 - Work measurement apparatus (2006-01-24),
10. 6948376 - Work transferring and transporting apparatus and work transferring and transporting method (2005-09-27),
11. 6727685 - Work transfer apparatus (2004-04-27),
12. 6642721 - Method of measuring insulation resistance of capacitor and insulation resistance measuring apparatus of the same (2003-11-04),
13. 6621261 - Work inspection apparatus (2003-09-16),
14. 6565309 - Polarity inversion apparatus and polarity inversion method for chip components (2003-05-20),
15. 6547879 - Electrode forming apparatus for electric parts (2003-04-15),
Company Overview
Tokyo Weld Co., Ltd. is a prominent manufacturer specializing in advanced welding technologies and equipment. The company focuses on developing innovative solutions for various industries, including automotive, construction, and manufacturing. With a commitment to quality and precision, Tokyo Weld integrates cutting-edge technology into its products, enhancing efficiency and performance in welding processes. The company operates primarily in Japan, contributing to the advancement of welding practices and standards in the region.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

18 Patents

#1,414 in Tokyo

#3,124 in Japan

#34,244 in the World

Tokyo, JP
Tokyo, Japan

Tokyo Weld Co., Ltd.

Forward Citations = 40

25 inventors:

goldMedal Tomoyuki Kojima (5 out of 5 patents)

silverMedal Masamichi Tsuchiya (4 out of 4 patents)

bronzeMedal Fukashi Ogasawara (3 out of 3 patents)

4.  Yoshihiko Yokoyama (2 out of 9 patents)

5.  Toshiro Higuchi (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tokyo Weld Co., Ltd.. Retrieved from https://idiyas.com/company/tokyo-weld-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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