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For the Inventor, By the Inventor

Tokyo, Japan

Hiroshi Ishihara

This inventor holds 11 USPTO granted patents and 1 EPO patent. Top assignees: Ricoh Company, Ltd., Tokyo Institute of Technology, Hitachi, Ltd.. Active years: 1986-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Ishihara. Retrieved from https://idiyas.com/inventor/hiroshi-ishihara-wy3yf4rm

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

USPTO Granted Patents = 11

% Patents Active = 36.4

 

Average Co-Inventor Count = 1.7

ph-index = 4

Forward Citations = 99(Granted Patents)


Location History:

  • Ohta, JP (1986)
  • Yokohama, JP (2010)
  • Tokyo, JP (1996 - 2021)

Company Filing History:

goldMedal4 out of 28,951 
 
Ricoh Company, Ltd.
 patents
silverMedal4 out of 591 
 
Tokyo Institute of Technology
 patents
bronzeMedal2 out of 42,740 
 
Hitachi, Ltd.
 patents
4. 1 out of 39,378 
 
Fujitsu Corporation
 patents
5. 1 out of 467 
 
Fujitsu Microelectronics Limited
 patents
6. 1 out of 176 
 
Softbank Corporation
 patents
where one patent can have more than one assignee

Years Active: 1986-2021

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11 patents (USPTO):Explore Patents
1. 10985839 - 3D-compatible directional optical antenna (2021-04-20),
2. 8849702 - Information processing apparatus, information processing method, and image forming apparatus (2014-09-30),
3. 7727843 - Semiconductor element, semiconductor storage device using the same, data writing method thereof, data reading method thereof, and manufacturing method of those (2010-06-01),
4. 7465980 - Ferroelectric memory, multivalent data recording method and multivalent data reading method (2008-12-16),
5. 7369277 - Image processing apparatus, drawing processing method, and computer program (2008-05-06),
6. 7330196 - Apparatus and method for image processing capable of accelerating image overlay process (2008-02-12),
7. 7033958 - Semiconductor device and process for producing the same (2006-04-25),
8. 6956584 - Image processing method, image processing apparatus, image output apparatus and storage medium (2005-10-18),
9. 5822239 - Method of writing data to a single transistor type ferroelectric memory (1998-10-13),
10. 5519812 - Ferrelectric adaptive-learning type product-sum operation circuit (1996-05-21),
11. 4565584 - Method of producing single crystal film utilizing a two-step heat (1986-01-21),

Title: Hiroshi Ishihara - Pioneering Inventor from Tokyo

Introduction: Hiroshi Ishihara is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroshi Ishihara holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hiroshi Ishihara has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in various industries.

Collaborations: Throughout his career, Hiroshi Ishihara has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange.

Conclusion: Hiroshi Ishihara's relentless pursuit of innovation and his passion for creating technology that positively impacts society solidify his position as a pioneering inventor in the global tech landscape.

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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