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For the Inventor, By the Inventor

Kanagawa-ken, Japan

Obara Corporation


USPTO Granted Patents = 48


Trademarks = 4

Forward Citations = 279

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33 inventors (with patents filed for the assignee):

goldMedal Shigeru Umeda (11 out of 11 patents)

silverMedal Toshihiro Nishiwaki (11 out of 12 patents)

bronzeMedal Tatsuo Morita (6 out of 73 patents)

4.  Yoshio Sato (6 out of 10 patents)

5.  Takehiro Izumi (4 out of 4 patents)

6.  Teruzo Yamaguchi (4 out of 4 patents)

7.  Kenji Hayafuji (3 out of 4 patents)

8.  Hiroshi Obara (3 out of 12 patents)

9.  Tsuyoshi Takatori (3 out of 3 patents)

10.  Katuji Tanabe (3 out of 3 patents)

11.  Masaki Kumagai (2 out of 16 patents)

12.  Kenta Aoki (2 out of 3 patents)

13.  Takashi Kanno (2 out of 2 patents)

14.  Daisuke Higuchi (2 out of 2 patents)

15.  Yasuhiro Obara (2 out of 2 patents)


Core Competencies:
Welding Robotics
Friction Stir Welding
Resistance Welding
Electrode Tip Management
Welding Control Systems
Welding Transformers
Tool Changers
Spot Joining Techniques
Welding Gun Technology
Cooling Systems for Welders
Data Protection in Welding
Current Sensing in Welding

48 patents:

1. 12311460 - Replacing and holding device for electrode tip (2025-05-27),
2. 11203081 - Removal device of welding electrode tip (2021-12-21),
3. 9302343 - Process for spot-joining stacked metal foils (2016-04-05),
4. 7654435 - Rotary tool for friction stir spot welding and method of friction stir spot welding using the same (2010-02-02),
5. 7422140 - Friction stir spot joining device (2008-09-09),
6. 7383976 - Friction stir spot joining device (2008-06-10),
7. 7322509 - Friction stir spot joining device (2008-01-29),
8. 7105768 - Fixed type electrode tip take-out device (2006-09-12),
9. 7105767 - Fixed type electrode tip removal device (2006-09-12),
10. 6959228 - Method of protecting data stored in a memory of welding controller (2005-10-25),
11. 6813538 - Welding system (2004-11-02),
12. 6718837 - Driving unit for pressure application shaft in a welding apparatus (2004-04-13),
13. 6603228 - Driving unit of a welding equipment (2003-08-05),
14. 6252193 - X type electric welding machine (2001-06-26),
15. 6223971 - Driving unit of a welding equipment (2001-05-01),
Obara Corporation is a global technology company specializing in the manufacturing of advanced industrial machinery. With over three decades of experience, Obara has established itself as a leading provider of innovative solutions for various industries including automotive, electronics, and renewable energy. Through continuous research and development, Obara aims to enhance manufacturing processes, improve productivity, and exceed customer expectations. Visit our website to learn more about our cutting-edge products and solutions.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

48 Patents

#11 in Kanagawa-ken

#1,724 in Japan

#14,124 in the World

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Kanagawa-ken, Japan

Obara Corporation

Forward Citations = 279

33 inventors:

goldMedal Shigeru Umeda (11 out of 11 patents)

silverMedal Toshihiro Nishiwaki (11 out of 12 patents)

bronzeMedal Tatsuo Morita (6 out of 73 patents)

4.  Yoshio Sato (6 out of 10 patents)

5.  Takehiro Izumi (4 out of 4 patents)

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