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For the Inventor, By the Inventor

Saitama, Japan

Mansei Kogyo Kabushiki Kaisha

Calculating rank
USPTO Granted Patents = 16

Forward Citations = 130

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8 inventors (with patents filed for the assignee):

goldMedal Kenjiro Goto (10 out of 10 patents)

silverMedal Nobuyoshi Moriya (2 out of 2 patents)

bronzeMedal Yoshiharu Tanaka (2 out of 2 patents)

4.  Yoshiyuki Hayami (1 out of 1 patent)

5.  Tetsuzo Aoyama (1 out of 1 patent)

6.  Susumu Yonezawa (1 out of 4 patents)

7.  Katsumi Fukumoto (1 out of 1 patent)

8.  Akinori Watabe (1 out of 2 patents)


16 patents:

1. 5548565 - Timepiece device (1996-08-20),
2. 4511212 - Focussing lens operating device (1985-04-16),
3. 4437177 - Small-sized video or audio pickup device having a beam deflector (1984-03-13),
4. 4299348 - Method of making a game racket (1981-11-10),
5. 4165519 - Optical control system for read out from information recording medium (1979-08-21),
6. 4157891 - Fuel flow adjusting device for use in gas-fueled lighters (1979-06-12),
7. D249812 - Cigarette lighter (1978-10-03),
8. 4102631 - Battery operated lighter equipped with a battery operated timepiece (1978-07-25),
9. 4092096 - Battery operated lighter equipped with a digital timepiece (1978-05-30),
10. 4089636 - Battery ignitable cigarette lighter (1978-05-16),
11. 4080156 - Fuel flow adjusting device for use in gas-fueled lighters (1978-03-21),
12. D247514 - Cigarette lighter (1978-03-14),
13. 4023922 - Smoker's lighter (1977-05-17),
14. 4022566 - Gas-fueled electric lighter (1977-05-10),
15. D243962 - Cigarette lighter (1977-04-05),
Company Overview
Mansei Kogyo Kabushiki Kaisha, based in Saitama, Japan, specializes in the development and manufacturing of precision machinery and components. The company focuses on innovative solutions that cater to various industries, including automotive and electronics. With a commitment to quality and technological advancement, Mansei Kogyo engages in research and development to enhance its product offerings, ensuring they meet the evolving needs of its clients while maintaining a strong presence in the competitive landscape of precision engineering.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

16 Patents

#62 in Saitama 343-0827

#3,345 in Japan

#37,914 in the World

Saitama, JP
Saitama, Japan

Mansei Kogyo Kabushiki Kaisha

Forward Citations = 130

8 inventors:

goldMedal Kenjiro Goto (10 out of 10 patents)

silverMedal Nobuyoshi Moriya (2 out of 2 patents)

bronzeMedal Yoshiharu Tanaka (2 out of 2 patents)

4.  Yoshiyuki Hayami (1 out of 1 patent)

5.  Tetsuzo Aoyama (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mansei Kogyo Kabushiki Kaisha. Retrieved from https://idiyas.com/company/mansei-kogyo-kabushiki-kaisha

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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