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For the Inventor, By the Inventor

Okaya, Japan

Joji Karasawa

This inventor holds 19 USPTO granted patents and 1 EPO patent, primarily in Projector Technology. Top assignee: Seiko Epson Corporation. Active years: 1995-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Joji Karasawa. Retrieved from https://idiyas.com/inventor/joji-karasawa

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

Calculating rank
USPTO Granted Patents = 19

% Patents Active = 63.2


Average Co-Inventor Count = 2.1

ph-index = 9

Forward Citations = 417(Granted Patents)


Location History:

  • Nagano-ken, JP (1998 - 2001)
  • Suwa, JP (1995 - 2003)
  • Okaya, JP (2002 - 2024)

Company Filing History:

goldMedal19 out of 34,305 
 
Seiko Epson Corporation
 patents

Years Active: 1995-2024

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Areas of Expertise:
Information Processing
Projection System
Cooling Duct
Light Modulation
Liquid Crystal Display
Transmissive Screen
Head-Mounted Display
Image Display
Virtual Image
Data Processing
Electro-Optical Device
Stereophonic Headphones
19 patents (USPTO):Explore Patents
1. 11900319 - Information processing device (2024-02-13),
2. 11054727 - Projector and projection system (2021-07-06),
3. 8308303 - Projector having cooling duct including flow paths for directing cooling air over light modulation devices (2012-11-13),
4. 7843536 - Liquid crystal display device and projector (2010-11-30),
5. 7390095 - Projector (2008-06-24),
6. 7329007 - Projector (2008-02-12),
7. 7172293 - Projector (2007-02-06),
8. 7168812 - Projector (2007-01-30),
9. 7156523 - Projector (2007-01-02),
10. 6947212 - Transmissive screen and rear projector (2005-09-20),
11. 6538624 - Head-mounted image display apparatus (2003-03-25),
12. 6491396 - Projector modulating a plurality of partial luminous fluxes according to imaging information by means of an electro-optical device (2002-12-10),
13. 6320559 - Head-mounted image display device and data processing apparatus including the same (2001-11-20),
14. 6040945 - Head mount display device (2000-03-21),
15. 6011653 - Head-mounted display (2000-01-04),

Title: Joji Karasawa: Pioneering Inventor from Okaya

Introduction: Joji Karasawa is a renowned inventor hailing from Okaya, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Joji Karasawa holds several patents in various technological domains, showcasing his continuous dedication to pushing the boundaries of innovation.

Career Highlights: Throughout his illustrious career, Joji Karasawa has been instrumental in developing cutting-edge technologies that have revolutionized industries and improved the lives of many.

Collaborations: Joji Karasawa has collaborated with leading research institutions, universities, and companies worldwide, fostering a culture of innovation and knowledge sharing.

Conclusion: Joji Karasawa's relentless pursuit of innovation and his passion for creating impactful solutions solidify his legacy as a pioneering inventor in the realm of technology.

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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