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For the Inventor, By the Inventor

Nagano-ken, Japan

Minebea Kabushiki-kaisha


USPTO Granted Patents = 52


Forward Citations = 296

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31 inventors (with patents filed for the assignee):

goldMedal Rikuro Obara (39 out of 80 patents)

silverMedal Katashi Tatsuno (7 out of 7 patents)

bronzeMedal Hiroshi Yoshikawa (5 out of 8 patents)

4.  Yutaka Daikuhara (4 out of 7 patents)

5.  Yuzuru Suzuki (2 out of 115 patents)

6.  Eiichi Kobayashi (2 out of 2 patents)

7.  Toshisada Koyama (1 out of 17 patents)

8.  Takuya Yamamoto (1 out of 7 patents)

9.  Sakae Fujitani (1 out of 57 patents)

10.  Yasuhiro Mouri (1 out of 3 patents)

11.  Shigenori Hoya (1 out of 5 patents)

12.  Noriyuki Yoshimura (1 out of 24 patents)

13.  Yuichi Murakami (1 out of 2 patents)

14.  Hiroyuki Yajima (1 out of 3 patents)

15.  Hideki Matsuoka (1 out of 5 patents)


Core Competencies:
Spindle Motor
Hard Disk Drive
Compound Bearing Assembly
Anti-Friction Bearing
Electric Drive Motor
Ball Bearing
Fan Blower
Rotary Machine
Seal Technology
Bearing Structure
Magnetic Disk Unit
Screw Production Method

52 patents:

1. 7056030 - Pivot bearing for a swing arm of a hard disk drive device (2006-06-06),
2. 6916160 - Axial electric fan blower with electric components housing sealed from moisture, dirt and dust or other harmful gas (2005-07-12),
3. 6794774 - Spindle motor (2004-09-21),
4. 6734591 - Spindle motor (2004-05-11),
5. 6688772 - Retainer for ball bearing, and ball bearing including the same (2004-02-10),
6. 6599022 - Bearing apparatus (2003-07-29),
7. 6599021 - Compound bearing apparatus (2003-07-29),
8. 6599020 - Double seal bearing (2003-07-29),
9. 6582129 - Compound bearing apparatus, and spindle motor and swing arm for hard disk drive means including such bearing apparatus (2003-06-24),
10. 6563243 - Spindle motor (2003-05-13),
11. 6556375 - Hard disk drive device (2003-04-29),
12. 6538354 - Spindle motor with toroidal sealing plates (2003-03-25),
13. 6512316 - Spindle motor (2003-01-28),
14. 6511303 - Fan blower with durable bearing structure (2003-01-28),
15. 6474871 - Anti-friction bearing and a motor including such a bearing (2002-11-05),
Established in 1951, Minebea Kabushiki-Kaisha is a global manufacturer and supplier of various precision components and electronic devices. With headquarters in Tokyo, Japan, Minebea offers a wide range of products such as miniature ball bearings, mechanical parts, aerospace components, lighting products, and more. The company's commitment to high-quality manufacturing and technological innovation has earned them a strong reputation in the industry. Learn more about Minebea Kabushiki-Kaisha and explore their products on their official website.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

52 Patents

#2 in Nagano-ken

#1,633 in Japan

#13,143 in the World

...
Nagano-ken, Japan

Minebea Kabushiki-kaisha

Forward Citations = 296

31 inventors:

goldMedal Rikuro Obara (39 out of 80 patents)

silverMedal Katashi Tatsuno (7 out of 7 patents)

bronzeMedal Hiroshi Yoshikawa (5 out of 8 patents)

4.  Yutaka Daikuhara (4 out of 7 patents)

5.  Yuzuru Suzuki (2 out of 115 patents)

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