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For the Inventor, By the Inventor

Osaka, Japan

Maeda Metal Industries, Ltd.

USPTO Granted Patents = 37

% Expired Patents = 2.7



Trademarks = 3

Forward Citations = 449

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21 inventors (with patents filed for the assignee):

goldMedal Yasunobu Kaneyama (10 out of 10 patents)

silverMedal Shozo Matsumura (10 out of 10 patents)

bronzeMedal Toshihiko Kushida (7 out of 9 patents)

4.  Yukio Torigai (7 out of 9 patents)

5.  Tatsuo Hirai (7 out of 9 patents)

6.  Takayoshi Obatake (5 out of 5 patents)

7.  Sueharu Yasutomi (5 out of 5 patents)

8.  Seiji Ikeda (5 out of 8 patents)

9.  Daijiro Yano (4 out of 4 patents)

10.  Yukio Uemura (4 out of 5 patents)

11.  Masahiro Fujita (4 out of 4 patents)

12.  Kenji Sato (3 out of 3 patents)

13.  Shinji Fukuhara (3 out of 3 patents)

14.  Katsuyuki Ono (3 out of 3 patents)

15.  Koichi Nakayama (2 out of 2 patents)


Core Competencies:
Tightening Machine
Electric Tool
Phase Control
Wireless Data
Antenna Switching
Torque Measuring
Bolt Fastening
Nut Tightening
Power Wrench
Torque Wrench
Fastening Device
Rotary Power Tool

37 patents:

1. 8978520 - Tightening machine having socket unit (2015-03-17),
2. 8853987 - Electric tool (2014-10-07),
3. 8547072 - Phase control apparatus (2013-10-01),
4. 8264374 - Wireless data transmitting and receiving system (2012-09-11),
5. 8200287 - Antenna switching method of wireless communication system (2012-06-12),
6. 7992455 - Tightening torque measuring unit (2011-08-09),
7. D639629 - Bolt or nut tightening device (2011-06-14),
8. 7886635 - Bolt or nut tightening device (2011-02-15),
9. 7757587 - Bolt or nut tightening device (2010-07-20),
10. D609989 - Bolt or nut tightening device (2010-02-16),
11. D606831 - Bolt or nut tightening device (2009-12-29),
12. D605539 - Power increasing device with a display for wrench (2009-12-08),
13. 7595601 - Electric bolt/nut fastener (2009-09-29),
14. D586640 - Bolt or nut tightening device (2009-02-17),
15. D569207 - Bolt and nut tightening device (2008-05-20),
Company Overview
Maeda Metal Industries, Ltd. is a prominent manufacturer based in Osaka, Japan, specializing in the development and production of high-quality metal products. The company focuses on advanced metal processing technologies, catering to various industries including automotive, construction, and machinery. With a commitment to innovation, Maeda Metal Industries emphasizes research and development to enhance product performance and sustainability, positioning itself as a key player in the global metal industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

37 Patents

#218 in Osaka

#2,059 in Japan

#18,299 in the World

Osaka, JP
Osaka, Japan

Maeda Metal Industries, Ltd.

Forward Citations = 449

21 inventors:

goldMedal Yasunobu Kaneyama (10 out of 10 patents)

silverMedal Shozo Matsumura (10 out of 10 patents)

bronzeMedal Toshihiko Kushida (7 out of 9 patents)

4.  Yukio Torigai (7 out of 9 patents)

5.  Tatsuo Hirai (7 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Maeda Metal Industries, Ltd.. Retrieved from https://idiyas.com/company/maeda-metal-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]
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