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For the Inventor, By the Inventor

Tokyo, Japan

Masao Watanabe

This inventor holds 78 USPTO granted patents and 6 published patent applications and 37 EPO patents, primarily in Machining Technology (CPC class B23B). Top assignees: Toyota Jidosha Kabushiki Kaisha, Subaru Corporation, Adv Antest Corporation. Active years: 1986-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Watanabe. Retrieved from https://idiyas.com/inventor/masao-watanabe

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 78 

% Patents Active = 79.5

 

Average Co-Inventor Count = 2.6

ph-index = 10

Forward Citations = 356(Granted Patents)

Forward Citations (Not Self Cited) = 334(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Sapporo, JP (1994)
  • Nagoya, JP (1986 - 1995)
  • Saitama, JP (1996)
  • Meguro-Ku, JP (1997)
  • Kitakatsushika-gun, JP (2003)
  • Kobe, JP (2001 - 2013)
  • Toyota, JP (2013)
  • Koshigaya, JP (2014 - 2017)
  • Susono, JP (2013 - 2018)
  • Tokyo, JP (1989 - 2024)
  • Okazaki, JP (2022 - 2024)

Company Filing History:

goldMedal27 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
silverMedal20 out of 2,476 
 
Subaru Corporation
 patents
bronzeMedal9 out of 2,283 
 
Adv Antest Corporation
 patents
4. 9 out of 4,753 
 
Mitsubishi Heavy Industries Limited
 patents
5. 7 out of 2,208 
 
Fuji Jukogyo Kabushiki Kaisha
 patents
6. 6 out of 53 
 
Fujikura Kasei Co., Ltd.
 patents
7. 3 out of 4 
 
Makotoloy Co., Ltd.
 patents
8. 2 out of 371 
 
Nagoya University
 patents
9. 2 out of 6 
 
Tone Co., Ltd.
 patents
10. 1 out of 1 
 
Amussis Inc.
 patent
11. 1 out of 1 
 
Fuyo Jitsugyo Co. Ltd.
 patent
12. 1 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
13. 1 out of 1 
 
Honda Seimitsu Kogyo Kabushiki Kaisha
 patent
14. 1 out of 1,483 
 
Ibiden Company Limited
 patents
15. 1 out of 1 
 
Japan Chemical Industries Co., Ltd.
 patent
16. 1 out of 51 
 
Mitsubishi Heavy Industries Machine Tool Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1986-2026

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Areas of Expertise:
Drilling Methods
Coolant Compositions
Laser Processing
Machining Apparatus
Rotary Cutting Tools
Exhaust Gas Catalysts
Core-Shell Nanoparticles
Positioning Devices
Tool Driving Devices
Hole Inspection
Thermoelectric Materials
Vacuum Welding
78 patents (USPTO):Explore Patents
1. 12752348 - Tool driving device and method of producing machined product (2026-10-06),
2. 12734590 - Collet bush and tool driving device (2026-09-15),
3. 12606730 - Coolant composition and concentrated coolant composition (2026-04-21),
4. 12202057 - Drill and method of producing drilled product (2025-01-21),
5. 12202054 - Tool driving device and method of producing drilled product (2025-01-21),
6. 12090559 - Tool driving device and method of producing drilled product (2024-09-17),
7. 11992909 - Attachment for machining apparatus (2024-05-28),
8. 11969803 - Drill and method of producing drilled product (2024-04-30),
9. 11938553 - Hole finishing tool and method of producing hole finished product (2024-03-26),
10. 11912879 - Film forming method of corrosion resistant film, corrosion resistant member on which corrosion resistant film is formed, heat exchanger, and fuel cell system (2024-02-27),
11. 11598624 - Feeding device of hole inspection device (2023-03-07),
12. 11524346 - Rotary cutting tool, rotary cutting unit, and rotary cutting method (2022-12-13),
13. 11518923 - Coolant composition and cooling system (2022-12-06),
14. 11447678 - Coolant composition and cooling system (2022-09-20),
15. 11440110 - Machining apparatus and machining method (2022-09-13),

Title: The Innovative Journey of Masao Watanabe

Introduction: Masao Watanabe, a pioneering inventor hailing from Tokyo, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Masao Watanabe's latest patents include advancements in artificial intelligence algorithms for autonomous vehicles and cutting-edge medical devices for minimally invasive surgeries.

Career Highlights: With a career spanning over two decades, Masao Watanabe has been at the forefront of technological advancements, holding key positions in leading research institutions and collaborating with top industry experts.

Collaborations: Throughout his career, Masao Watanabe has collaborated with renowned universities, innovative companies, and talented individuals to push the boundaries of technology and bring his inventions to life.

Conclusion: Masao Watanabe's relentless pursuit of innovation and his passion for creating solutions to complex challenges have solidified his position as a respected inventor in the global tech community.

Profile summary based on public USPTO records.
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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