logo

For the Inventor, By the Inventor

Tokyo, Japan

Hiroyuki Kawai

This inventor holds 42 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in X-Ray Imaging Technology. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Hitachi Medical Corporation, Renesas Technology Corp.. Active years: 1989-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Kawai. Retrieved from https://idiyas.com/inventor/hiroyuki-kawai

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

USPTO Granted Patents = 42 

% Patents Active = 88.1

 

Average Co-Inventor Count = 3.0

ph-index = 14

Forward Citations = 742(Granted Patents)


Location History:

  • Hyogo-ken, JP (1996)
  • Itami, JP (1989 - 1998)
  • Setagaya-ku, JP (1998)
  • Hyogo, JP (1990 - 2006)
  • Tokyo, JP (1996 - 2013)

Company Filing History:

goldMedal23 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
silverMedal7 out of 900 
 
Hitachi Medical Corporation
 patents
bronzeMedal7 out of 3,781 
 
Renesas Technology Corp.
 patents
4. 2 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents
5. 2 out of 4,938 
 
Ntt Docomo, Inc.
 patents
6. 1 out of 3 
 
New Environmental Technology Council
 patents
7. 1 out of 1 
 
Waseda Business Consulting Co., Ltd.
 patent
where one patent can have more than one assignee

Years Active: 1989-2026

Loading Chart...
Loading Chart...
Areas of Expertise:
X-Ray CT Apparatus
Image Processing LSI
Geometry Processor
Floating Point Adder
Semiconductor Integrated Circuit
Data Transfer Control
Rendering Process Apparatus
Logarithmic Arithmetic Unit
Power Operation Device
FIFO Data Transfer
Terminal and Base Station
Beam Selection Method
42 patents (USPTO):Explore Patents
1. 12526028 - Beam selection method and network element (2026-01-13),
2. 12470276 - Terminal and base station (2025-11-11),
3. 12303342 - Liquid processing nozzle for purifying liquid piping of dental device (2025-05-20),
4. 8368979 - Image forming apparatus and computer readable medium for forming image (2013-02-05),
5. 8294950 - Image forming apparatus (2012-10-23),
6. 7054979 - Method and apparatus for routing configuration accesses from a primary port to a plurality of secondary ports (2006-05-30),
7. 7038684 - Rendering process apparatus capable of improving processing speed of overall graphic system (2006-05-02),
8. 6820107 - Square root extraction circuit and floating-point square root extraction device (2004-11-16),
9. 6795075 - Graphic processor having multiple geometric operation units and method of processing data thereby (2004-09-21),
10. 6711601 - Logarithmic arithmetic unit avoiding division as far as predetermined arithmetic precision is guaranteed (2004-03-23),
11. 6697889 - First-in first-out data transfer control device having a plurality of banks (2004-02-24),
12. 6675251 - Bridge device for connecting multiple devices to one slot (2004-01-06),
13. 6603481 - Geometry processor capable of executing input/output and high speed geometry calculation processing in parallel (2003-08-05),
14. 6581087 - Floating point adder capable of rapid clip-code generation (2003-06-17),
15. 6480873 - Power operation device (2002-11-12),

Title: Hiroyuki Kawai: Innovator in Image Forming Technologies

Introduction

Hiroyuki Kawai, based in Tokyo, Japan, is a notable innovator in the field of image forming technology. With an impressive portfolio of 39 patents, Kawai has significantly contributed to advancements in image processing and printing technologies. His work reflects a commitment to enhancing image quality and efficiency in imaging systems.

Latest Patents

Kawai's latest patents showcase cutting-edge developments in image forming apparatuses. One of his notable inventions is an image forming apparatus that incorporates a tone correction storage unit to store multiple tone correction charts for correcting image data. This innovative apparatus includes a determination unit to assess the characteristics of image data, allowing for precise tone corrections based on user inputs. Additionally, Kawai has patented another image forming apparatus that creates density correcting chart data. This technology enables users to compare reference density patterns with adjusting density patterns, facilitating accurate tone corrections in printed materials.

Career Highlights

Throughout his career, Hiroyuki Kawai has been associated with several prestigious companies. He has worked at Mitsubishi Electric Corporation, where he contributed to advancements in electronic systems. His experience at Hitachi Medical Corporation further highlights his versatility, as he applied his expertise in imaging technology to medical applications. Kawai's contributions have been pivotal in shaping the landscape of image processing technologies.

Collaborations

Kawai has collaborated with several esteemed professionals in the industry, including Yoshitsugu Inoue and Robert Streitenberger. These collaborations have fostered innovation and creativity in developing sophisticated imaging solutions. Working alongside skilled individuals has allowed Kawai to expand his knowledge and refine his inventions.

Conclusion

Hiroyuki Kawai is a distinguished inventor whose work has propelled advancements in image forming technologies. With 39 patents to his name, his contributions are invaluable in the field. As he continues to innovate, Kawai's influence on image processing and correction technology is likely to resonate for years to come.

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]
Loading…