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For the Inventor, By the Inventor

Kyoto, Japan

Kazuyuki Hirao

This inventor holds 20 USPTO granted patents and 1 published patent application and 6 EPO patents, primarily in Optical Manufacturing. Top assignees: Kyoto University, Hitachi Zosen Corporation, Japan Science and Technology Corporation. Active years: 1995-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyuki Hirao. Retrieved from https://idiyas.com/inventor/kazuyuki-hirao

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

USPTO Granted Patents = 20 

% Patents Active = 40.0

 

Average Co-Inventor Count = 4.0

ph-index = 5

Forward Citations = 131(Granted Patents)


Location History:

  • Sakyo-ku, Kyoto-shi JP (2007)
  • Kyoto-fu, JP (2003 - 2009)
  • Kyoto-shi, Kyoto, JP (2009)
  • Kyoto, JP (1995 - 2022)

Company Filing History:

goldMedal7 out of 871 
 
Kyoto University
 patents
silverMedal5 out of 278 
 
Hitachi Zosen Corporation
 patents
bronzeMedal3 out of 373 
 
Japan Science and Technology Corporation
 patents
4. 2 out of 6,934 
 
Kyocera Corporation
 patents
5. 2 out of 5 
 
Newtech LLC
 patents
6. 1 out of 1,011 
 
Central Glass Company, Limited
 patents
7. 1 out of 725 
 
Horiba, Ltd.
 patents
8. 1 out of 1 
 
Jianrong Qiu
 patent
9. 1 out of 16 
 
Kohoku Kogyo Co., Ltd.
 patents
10. 1 out of 1 
 
Lef Technology, Inc.
 patent
11. 1 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents
12. 1 out of 923 
 
Tosoh Corporation
 patents
13. 5 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1995-2026

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Areas of Expertise:
Metal Particle Dispersion
Calcium Aluminate Compound
Hydrogen Production
Nanometer-Size Wires
Optical Waveguide
Optical Device
Photostimulable Phosphor
Liquid Crystal Polymers
Titania Nanotube
Fiber Array
Inorganic Body Modification
Optical Communication
20 patents (USPTO):Explore Patents
1. 12734579 - Method of preparing metal particle dispersion (2026-09-15),
2. 11299398 - Modified calcium aluminate compound and production method therefor (2022-04-12),
3. 10900905 - Probe manufacturing method and probe (2021-01-26),
4. 10450198 - Method for producing conductive mayenite type compound (2019-10-22),
5. 9457334 - Hydrogen production process (2016-10-04),
6. 9266746 - Production method of mayenite (2016-02-23),
7. 9255004 - Continuous production method of hydrogen (2016-02-09),
8. 9216901 - Method for preparing hydrogen (2015-12-22),
9. 8273149 - Method for producing nanometer-size wires and nanometer-size wire (2012-09-25),
10. 8184930 - Titania nanotube and method for producing same (2012-05-22),
11. 7608371 - Method of modifying liquid crystal polymers (2009-10-27),
12. 7515803 - Optical element, manufacturing method thereof, and optical device (2009-04-07),
13. 7310463 - Optical structural body, its manufacturing method and optical element (2007-12-18),
14. 7266282 - Fiber array for optical communication and method of manufacturing the fiber array (2007-09-04),
15. 6729161 - Method of selectively reforming an inner part of an inorganic body (2004-05-04),

Title: Kazuyuki Hirao - Innovative Inventor from Kyoto

Introduction: Kazuyuki Hirao is a renowned inventor hailing from Kyoto, Japan, known for his groundbreaking contributions to various fields of technology and science.

Latest Patents: Kazuyuki Hirao holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his continuous commitment to innovation.

Career Highlights: With over two decades of experience in the industry, Hirao has worked with leading research institutions and universities to develop cutting-edge technologies that have revolutionized the way we approach complex problems.

Collaborations: Throughout his career, Kazuyuki Hirao has collaborated with top companies and inventors worldwide, fostering a culture of creativity and excellence in the pursuit of technological advancement.

Conclusion: Kazuyuki Hirao's passion for innovation and his relentless drive to push the boundaries of what is possible make him a true pioneer in the world of inventions, inspiring the next generation of inventors to dream big and create a better future.

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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