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For the Inventor, By the Inventor

Iwata, Japan

Yoshio Fujikawa

This inventor holds 12 USPTO granted patents and 2 EPO patents. Top assignees: Ntn Corporation, Other. Active years: 1991-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Fujikawa. Retrieved from https://idiyas.com/inventor/yoshio-fujikawa

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

USPTO Granted Patents = 12

% Patents Active = 66.7

 

Average Co-Inventor Count = 2.3

ph-index = 5

Forward Citations = 81(Granted Patents)


Location History:

  • Morimachi, JP (1997)
  • Shizuoka, JP (2000 - 2003)
  • Iwata, JP (1991 - 2021)

Company Filing History:

goldMedal11 out of 2,496 
 
Ntn Corporation
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 1991-2021

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12 patents (USPTO):Explore Patents
1. 10947950 - Hydroelectric power generation apparatus (2021-03-16),
2. 10648449 - Hydroelectric power generation apparatus (2020-05-12),
3. 8052327 - Hydrostatic gas bearing, rotator and CT scanner (2011-11-08),
4. 7066652 - Externally pressurized gas bearing and spindle equipment using this (2006-06-27),
5. 6956367 - Bearing assembly equipped with rotation sensor to determine rotation and position of rotating element (2005-10-18),
6. 6848828 - Foil bearing and spindle device using the same (2005-02-01),
7. 6581857 - Externally pressurized gas bearing spindle (2003-06-24),
8. 6524004 - Externally pressurized gas bearing spindle assembly (2003-02-25),
9. 6439773 - Externally pressurized gas bearing spindle assembly (2002-08-27),
10. 6019515 - Externally pressurized gas bearing assembly (2000-02-01),
11. 5660480 - Externally pressurized bearing spindle (1997-08-26),
12. 5073037 - Spindle assembly (1991-12-17),

Title: Innovations of Yoshio Fujikawa

Introduction

Yoshio Fujikawa is a notable inventor based in Iwata, Japan. He has made significant contributions to the field of hydroelectric power generation, holding a total of 12 patents. His innovative designs focus on creating efficient and easily installable hydroelectric power generation apparatuses.

Latest Patents

Fujikawa's latest patents include a hydroelectric power generation apparatus that features a hydroelectric power generation module, a supporting part, and a fixing part. This apparatus is designed to generate power through the rotation of a rotary blade connected to a power generator. The supporting part is engineered to be installed at a water channel, allowing for easy relocation and installation without extensive work around the water channel. Another patent describes a similar hydroelectric power generation apparatus, which includes a bar that can pivot to switch between different operational states, enhancing its versatility and functionality.

Career Highlights

Throughout his career, Yoshio Fujikawa has worked with various companies, including NTN Corporation. His experience in the industry has allowed him to develop practical solutions for renewable energy generation, particularly in hydroelectric systems.

Collaborations

Fujikawa has collaborated with notable individuals such as Shoji Fujii and Tomoya Kawai. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Yoshio Fujikawa's work in hydroelectric power generation exemplifies the potential of innovative engineering solutions in renewable energy. His patents reflect a commitment to creating efficient and user-friendly technologies that can significantly impact the energy sector.

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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