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For the Inventor, By the Inventor

Kanagawa, Japan

Takashi Sakamoto

This inventor holds 59 USPTO granted patents and 5 published patent applications and 5 EPO patents, primarily in Optical Communication (CPC class G03G). Top assignees: Fuji Xerox Co., Ltd., Nippon Telegraph and Telephone Corporation, Anritsu Corporation. Active years: 1984-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Sakamoto. Retrieved from https://idiyas.com/inventor/takashi-sakamoto

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

USPTO Granted Patents = 59 

% Patents Active = 52.5

 

Average Co-Inventor Count = 3.0

ph-index = 8

Forward Citations = 220(Granted Patents)

Forward Citations (Not Self Cited) = 210(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Zushi, JP (2004 - 2007)
  • Zama, JP (2004 - 2009)
  • Ebina, JP (1995 - 2013)
  • Kanagawa, JP (1984 - 2022)
  • Musashino, JP (2022)
  • Atsugi, JP (1990 - 2023)

Company Filing History:

goldMedal29 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents
silverMedal10 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
bronzeMedal9 out of 600 
 
Anritsu Corporation
 patents
4. 5 out of 53,250 
 
Kabushiki Kaisha Toshiba
 patents
5. 4 out of 2,396 
 
Fujifilm Business Innovation Corp.
 patents
6. 1 out of 3,133 
 
Hamamatsu-Photonics K.k.
 patents
7. 1 out of 1 
 
Nippon Telegraph and Telephone Communications
 patent
8. 1 out of 522 
 
Nippon Telegraph and Telephone Public Corporation
 patents
9. 1 out of 41 
 
Ntt Advanced Technology Corporation
 patents
where one patent can have more than one assignee

Years Active: 1984-2023

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Areas of Expertise:
Optical Deflector
Light Source
Display Control
Image Forming
Developing Device
Powder Processing
Optical Communication
Wavelength Routing
Photomask
Toner Supply
Developer Cartridge
Image Processing
59 patents (USPTO):Explore Patents
1. 11721948 - Swept light source and drive data generation method and optical deflector for swept light source (2023-08-08),
2. 11422428 - Light deflector (2022-08-23),
3. 11373619 - Display control apparatus, display system, and non-transitory computer readable medium (2022-06-28),
4. 11343393 - Display control apparatus, and non-transitory computer readable medium for controlling display time of images (2022-05-24),
5. 11321038 - Display control device and non-transitory computer readable medium storing display control program for setting display time according to display priority (2022-05-03),
6. 11165219 - Swept light source and drive data generation method and optical deflector for swept light source (2021-11-02),
7. 11106158 - Powder supply device with magnetic body that forms a nap of mixed agent (2021-08-31),
8. 11042334 - Information processing apparatus, image forming apparatus, and non-transitory computer readable medium (2021-06-22),
9. 10831130 - Developing device and image forming apparatus (2020-11-10),
10. 10205296 - Swept light source and method for controlling the same (2019-02-12),
11. 10031440 - Developing device and image forming member including a clearance closing member with grooves (2018-07-24),
12. 9459559 - Developing device and image forming apparatus (2016-10-04),
13. 9372339 - Wavelength swept light source (2016-06-21),
14. 8983319 - Image forming apparatus (2015-03-17),
15. 8831484 - Powder container, powder processing apparatus using the same, and powder container controlling method (2014-09-09),

Title: Takashi Sakamoto: Pioneering Innovations in Kanagawa

Introduction:

Takashi Sakamoto, a visionary inventor based in Kanagawa, Japan, has left an indelible mark on the world of technology through his relentless dedication to innovation. With a total of 59 patents to his name, Sakamoto's contributions have not only impacted his local community but have also garnered international acclaim.

Latest Patents:

Among his latest patents is the "Swept Light Source and Drive Data Generation Method," which showcases Sakamoto's ability to enhance the coherence length of an output beam over a wide sweep wavelength range. This innovation involves adjusting the gain of a gain medium in response to wavelength sweeps, ensuring maximum coherence length while keeping the gain close to a lasing threshold. Additionally, Sakamoto's "Optical Deflector for Swept Light Source" introduces a novel approach to deflecting incident light using an electro-optical material with a trap for accumulating charges, demonstrating his prowess in optical technology.

Career Highlights:

Sakamoto's illustrious career has seen him lend his expertise to esteemed companies such as Fuji Xerox Co., Ltd., and Nippon Telegraph and Telephone Corporation. His innovative spirit and technical acumen have been instrumental in driving technological advancements within these organizations, solidifying his reputation as a forward-thinker in the field.

Collaborations:

Throughout his career, Sakamoto has collaborated with industry peers Kazuto Noguchi and Kei Hirata, further enriching his innovative pursuits. Together, they have worked on cutting-edge projects that have pushed the boundaries of technology and paved the way for new advancements in the industry.

Conclusion:

In conclusion, Takashi Sakamoto's unwavering commitment to innovation and his exceptional contributions to the field of technology have positioned him as a trailblazer in Kanagawa, Japan, and beyond. His impressive portfolio of patents and collaborations serve as a testament to his visionary approach to invention, leaving a lasting impact on the world of technology.

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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