Naoto Shiraishi

This inventor holds 53 USPTO granted patents and 9 published patent applications, primarily in Image Processing (CPC class H04N). Top assignee: Ricoh Company, Ltd.. Active years: 1994-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoto Shiraishi. Retrieved from https://idiyas.com/inventor/naoto-shiraishi

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

Calculating rank

USPTO Granted Patents = 53 (Patent Applications = 9)

% Patents Active = 60.4

Average Co-Inventor Count = 1.2

ph-index = 13

Forward Citations = 375(Granted Patents)

Forward Citations (Not Self Cited) = 204(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Minoo, JP (1994 - 1996)
Osaka, JP (2000)
Toyonaka, JP (1994 - 2001)
Tokyo, JP (2005 - 2011)
Kanagawa, JP (2012 - 2023)

Company Filing History:

53 out of 28,957

Ricoh Company, Ltd.

patents

Years Active: 1994-2023

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Areas of Expertise:

Image Processing

Encoding Methods

Data Compression

Optical Output Control

High-Speed Translucency

Image Forming

Color Image Processing

Multi-Valued Image

Graphic Control

Shading Processing

Anti-Aliasing

Information Processing

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11803985 - Information processing apparatus, information processing method, and recording medium (2023-10-31),

2. 10652540 - Image processing device, image processing method, and recording medium storing image processing program (2020-05-12),

3. 10560600 - Encoding apparatus, encoding method, and recording medium (2020-02-11),

4. 10313551 - Control system configured to correct variations in optical output of light emitting devices, image forming system, control method, and computer-readable recording medium (2019-06-04),

5. 10192282 - Information processing device, image processing apparatus, and information processing method for high-speed translucency calculation (2019-01-29),

6. 10152657 - Image processing apparatus and image processing method of color image (2018-12-11),

7. 10021275 - Image processing apparatus, method of controlling image processing apparatus, and non-transitory recording medium (2018-07-10),

8. 9955036 - Image forming apparatus including a first storage, a second storage, and a bus and image forming method using the same (2018-04-24),

9. 9208415 - Image processing apparatus and method encoding multi-valued image generated with fewer values (2015-12-08),

10. 9092717 - Data processing device and data processing method (2015-07-28),

11. 8982405 - Image processing device, image processing method, and image forming apparatus for processing image data having a larger size (2015-03-17),

12. 8934727 - Image processing apparatus, image processing method, and image forming apparatus (2015-01-13),

13. 8842328 - Image processing device (2014-09-23),

14. 8817346 - Image processing apparatus, image processing method, and image forming apparatus for reading code data rotated at 180 degrees (2014-08-26),

15. 8786901 - Image processing apparatus, image processing method, and computer program product (2014-07-22),

Title: The Innovative Contributions of Naoto Shiraishi in Image Processing

Introduction: Naoto Shiraishi, based in Kanagawa, Japan, is a prolific inventor known for his significant advancements in information processing technologies. With an impressive portfolio of 53 patents, Shiraishi's work is recognized for its impact on the field of image processing and data encoding.

Latest Patents: Shiraishi's latest patents include groundbreaking developments such as an information processing apparatus and method, as well as a recording medium. The first patent focuses on encoding techniques, where the apparatus divides an image into blocks and selects between fixed-length and variable-length coding methods based on specific data size criteria. The second patent describes an image processing device that employs discrete wavelet transforms to enhance image data quality, facilitating the transformation and quantization of YUV image data for effective encoding.

Career Highlights: Naoto Shiraishi is currently associated with Ricoh Company, Ltd., a leading manufacturer known for its innovative imaging and electronics solutions. Throughout his career, he has dedicated himself to advancing image processing technologies, continuously striving to improve efficiency and performance.

Collaborations: In his innovative journey, Shiraishi has collaborated with notable individuals such as Tatsuya Fujii and Masanobu Fukushima. Their combined expertise has undoubtedly contributed to the success of their projects and the advancement of their patent portfolio.

Conclusion: Naoto Shiraishi's contributions to image processing and information technology exemplify the spirit of innovation and the importance of collaboration in achieving groundbreaking results. His ongoing work at Ricoh Company reflects a commitment to pushing the boundaries of technology and enhancing the way we process and interact with visual data.

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]

9 patents pending: