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For the Inventor, By the Inventor

Saitama, Japan

Hiromitsu Yamakawa

This inventor holds 54 USPTO granted patents and 3 published patent applications and 7 EPO patents, primarily in Imaging Lens Technology (CPC class G02B). Top assignees: Fuji Photo Optical Co., Ltd., Fujifilm Corporation, Fujinon Corporation. Active years: 1986-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromitsu Yamakawa. Retrieved from https://idiyas.com/inventor/hiromitsu-yamakawa

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

USPTO Granted Patents = 54 

% Patents Active = 64.8

 

Average Co-Inventor Count = 1.4

ph-index = 10

Forward Citations = 293(Granted Patents)

Forward Citations (Not Self Cited) = 280(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Ohmiya, JP (1986 - 1994)
  • Omiya, JP (1993 - 2003)
  • Omiya-City, Saitama, JP (2003)
  • Saitama, JP (1996 - 2013)
  • Saitama-ken, JP (1997 - 2017)

Company Filing History:

goldMedal27 out of 1,279 
 
Fuji Photo Optical Co., Ltd.
 patents
silverMedal12 out of 16,949 
 
Fujifilm Corporation
 patents
bronzeMedal10 out of 695 
 
Fujinon Corporation
 patents
4. 9 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
5. 1 out of 2 
 
Fuji Photo Film Optical Co., Ltd.
 patents
6. 2 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1986-2017

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Areas of Expertise:
Imaging Lens
Optical System
Wide-Angle Lens
Laser Apparatus
Exposure Head
Image Pickup Device
Optical Pickup Device
Condensing Lens
Optically-Multiplexed-Laser
Image Scanning Device
Image Readout Apparatus
Optical Scanning Apparatus
54 patents (USPTO):Explore Patents
1. 9599789 - Imaging lens and imaging apparatus (2017-03-21),
2. 9519121 - Imaging lens and imaging apparatus (2016-12-13),
3. 9417437 - Imaging lens and imaging apparatus (2016-08-16),
4. 9036269 - Imaging lens and imaging apparatus (2015-05-19),
5. 8922910 - Imaging lens and imaging apparatus (2014-12-30),
6. 8611024 - Image pickup lens and image pickup apparatus (2013-12-17),
7. 8379326 - Imaging lens and imaging apparatus (2013-02-19),
8. 8331042 - Imaging lens and imaging apparatus (2012-12-11),
9. 8270097 - Imaging lens and imaging apparatus (2012-09-18),
10. 8194330 - Imaging lens and imaging apparatus (2012-06-05),
11. 8189271 - Imaging lens and imaging apparatus (2012-05-29),
12. 7595938 - Wide-angle imaging lens, imaging device and camera module (2009-09-29),
13. 7518809 - Ultra wide-angle imaging lens device and imaging apparatus (2009-04-14),
14. 7444047 - Multiplexing optical system (2008-10-28),
15. 7443779 - Objective optical system for optical recording media and optical pickup device using it (2008-10-28),

Title: The Innovative Journey of Hiromitsu Yamakawa

Introduction: Hiromitsu Yamakawa, a pioneering inventor hailing from Saitama, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Hiromitsu Yamakawa's most recent patents focus on advancements in renewable energy technologies, particularly in the field of solar power efficiency and storage solutions.

Career Highlights: With a career spanning over two decades, Yamakawa has been at the forefront of numerous technological breakthroughs. His work has been instrumental in revolutionizing the way we harness and utilize clean energy sources.

Collaborations: Throughout his career, Hiromitsu Yamakawa has collaborated with leading research institutions and universities to further his research and bring his inventions to life. His partnerships have been crucial in pushing the boundaries of innovation in the renewable energy sector.

Conclusion: In conclusion, Hiromitsu Yamakawa's relentless pursuit of innovation and his passion for creating a sustainable future have solidified his position as a visionary inventor in the field of clean energy technology. His contributions continue to inspire and shape the landscape of renewable energy solutions globally.

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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