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For the Inventor, By the Inventor

Tokyo, Japan

Takashi Fujii

This inventor holds 62 USPTO granted patents and 23 published patent applications and 18 EPO patents, primarily in Nonaqueous Electrolytes (CPC class H01M). Top assignees: Mitsubishi Chemical Corporation, Nec Corporation, Canon Kabushiki Kaisha. Active years: 1989-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Fujii. Retrieved from https://idiyas.com/inventor/takashi-fujii-ja8a3ei7

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

USPTO Granted Patents = 62 

% Patents Active = 90.3

 

Average Co-Inventor Count = 2.4

ph-index = 11

Forward Citations = 519(Granted Patents)

Forward Citations (Not Self Cited) = 472(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Okazaki, JP (1989)
  • Ibaraki-ken, JP (2002)
  • Kawasaki, JP (2004)
  • Kanagawa-ken, JP (2004)
  • Tsukuba, JP (2005 - 2006)
  • Ibaraki, JP (2005 - 2018)
  • Inashiki-gun, JP (2011 - 2022)
  • Kashiwa, JP (2022)
  • Tokyo, JP (1991 - 2024)
  • Kanagawa, JP (2024)

Company Filing History:

goldMedal26 out of 2,426 
 
Mitsubishi Chemical Corporation
 patents
silverMedal9 out of 36,718 
 
Nec Corporation
 patents
bronzeMedal5 out of 93,085 
 
Canon Kabushiki Kaisha
 patents
4. 4 out of 2,304 
 
Mitsubishi Gas Chemical Company, Inc.
 patents
5. 4 out of 4,751 
 
Mitsubishi Heavy Industries Limited
 patents
6. 4 out of 3,721 
 
Nippon Steel Corporation
 patents
7. 3 out of 651 
 
Mitsubishi Hitachi Power Systems, Ltd.
 patents
8. 2 out of 1,650 
 
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
 patents
9. 2 out of 29 
 
Mu Ionic Solutions Corporation
 patents
10. 2 out of 53 
 
Stella Chemifa Corporation
 patents
11. 1 out of 2 
 
Chiyoda Kohan Co., Ltd
 patents
12. 1 out of 95 
 
Kayaba Kogyo Kabushiki Kaisha
 patents
13. 1 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
14. 1 out of 51 
 
Nihon Micro Coating Co., Ltd.
 patents
15. 1 out of 7,657 
 
Renesas Electronics Corporation
 patents
16. 1 out of 8,267 
 
Tdk Corporation
 patents
where one patent can have more than one assignee

Years Active: 1989-2025

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Areas of Expertise:
Nonaqueous Electrolyte
Secondary Battery
Gas Turbine
Electrolytic Solution
Turbine Blade
Control Method
Steel Sheet
Hydrogen Production
Semiconductor Device
Gasification System
Manufacturing Method
Ultraviolet Irradiation
62 patents (USPTO):Explore Patents
1. 12497519 - Pre-coated plated steel sheet and molded product (2025-12-16),
2. 12492478 - Coated and plated steel sheet or coated and plated steel strip (2025-12-09),
3. 12421588 - Pre-coated plated steel sheet and molded product (2025-09-23),
4. 12353553 - Information processing apparatus and control method of the same (2025-07-08),
5. 12100809 - Non-aqueous liquid electrolyte and non-aqueous liquid electrolyte secondary battery (2024-09-24),
6. 12098656 - Stator vane assembly of gas turbine, stationary member segment, and method of producing stator vane assembly of gas turbine (2024-09-24),
7. 12039052 - Information processing apparatus, method of controlling the same, and storage medium (2024-07-16),
8. 11905848 - Turbine blade, manufacturing method for turbine blade, and gas turbine (2024-02-20),
9. 11520872 - Information processing apparatus, method for controlling information processing apparatus, and storage medium (2022-12-06),
10. 11283107 - Non-aqueous liquid electrolyte and non-aqueous liquid electrolyte secondary battery (2022-03-22),
11. 11066720 - Hot-rolled steel sheet and manufacturing method thereof, and manufacturing method of cold-rolled steel sheet (2021-07-20),
12. 10777850 - Nonaqueous electrolytic solution and nonaqueous electrolyte secondary battery using the same (2020-09-15),
13. 10748933 - Semiconductor device (2020-08-18),
14. 10424813 - Non-aqueous electrolyte solution and non-aqueous electrolyte secondary battery using same (2019-09-24),
15. 10333172 - Non-aqueous liquid electrolyte and non-aqueous liquid electrolyte secondary battery (2019-06-25),

Title: The Innovative Journey of Takashi Fujii

Introduction: Takashi Fujii is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Takashi Fujii holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to innovation.

Career Highlights: With over two decades of experience in the tech industry, Takashi Fujii has worked with leading research institutions and multinational corporations, spearheading projects that have revolutionized the way we interact with technology on a daily basis.

Collaborations: Throughout his career, Takashi Fujii has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Takashi Fujii's relentless pursuit of innovation and his passion for pushing the boundaries of technology make him a true visionary in the world of inventors.

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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