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For the Inventor, By the Inventor

Fukushima, Japan

Yoshihiko Ishitaka

This inventor holds 12 USPTO granted patents. Top assignees: Alps Electric Co., Ltd., Chisso Corporation. Active years: 1995-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiko Ishitaka. Retrieved from https://idiyas.com/inventor/yoshihiko-ishitaka

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 = 75.0

Average Co-Inventor Count = 2.1

ph-index = 9

Forward Citations = 251(Granted Patents)


Location History:

  • Miyagi, JP (1995)
  • Sendai, JP (1996 - 1998)
  • Miyagi-ken, JP (1998 - 2001)
  • Fukushima-ken, JP (2000 - 2004)

Company Filing History:

goldMedal12 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal1 out of 1,109 
 
Chisso Corporation
 patents
where one patent can have more than one assignee

Years Active: 1995-2004

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12 patents (USPTO):Explore Patents
1. 6808282 - Light guide plate having anti-reflection layer and a method of manufacturing the same (2004-10-26),
2. 6806922 - Surface light-emitting device having light-guide panel wherein light radiated from exit surface is maximized proximate to normal direction of exit surface (2004-10-19),
3. 6693683 - Photo-conductor plate reduced in light reflection, and surface emitting device and liquid crystal display unit using it (2004-02-17),
4. 6330046 - Reflection type liquid crystal display device wherein the organic film is terminated before extending into the driving element mounting region (2001-12-11),
5. 6233031 - Liquid crystal display device (2001-05-15),
6. 6219120 - Liquid crystal display with corrugated reflective surface (2001-04-17),
7. 6141073 - Reflective type liquid crystal display (2000-10-31),
8. 6130736 - Liquid crystal display with corrugated reflective surface (2000-10-10),
9. 5725915 - Liquid crystal display (1998-03-10),
10. 5705096 - UV crosslinking compound, alignment film for LCD component and LCD (1998-01-06),
11. 5486403 - Alignment layer for liquid crystal element and method of producing same (1996-01-23),
12. 5438421 - Orientation film of liquid crystal having bilaterally asymmetric ridges (1995-08-01),

Title: Yoshihiko Ishitaka - Innovative Inventor from Fukushima-ken, Japan

Introduction: Yoshihiko Ishitaka is a renowned inventor hailing from Fukushima-ken, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yoshihiko Ishitaka holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Yoshihiko Ishitaka has worked with leading research institutions and tech companies, consistently pushing the boundaries of what is possible in the world of innovation. His dedication to creating solutions for real-world problems has earned him recognition globally.

Collaborations: Throughout his career, Yoshihiko Ishitaka has collaborated with top engineers, scientists, and inventors from around the world, fostering a culture of creativity and excellence in all his projects. His ability to work in diverse teams has led to the development of cutting-edge technologies.

Conclusion: Yoshihiko Ishitaka's passion for innovation, coupled with his technical expertise, has solidified his position as a trailblazer in the world of inventions. His relentless pursuit of excellence continues to inspire the next generation of inventors and innovators worldwide.

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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