Takashi Kumagai

This inventor holds 52 USPTO granted patents, primarily in Semiconductor Devices (CPC class H01L). Top assignee: Seiko Epson Corporation. Active years: 1996-2013.

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

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

USPTO Granted Patents = 52

% Patents Active = 50.0

Average Co-Inventor Count = 3.5

ph-index = 11

Forward Citations = 493(Granted Patents)

Forward Citations (Not Self Cited) = 398(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Nagano-ken, JP (1999)
Nagano, JP (2000)
Suwa, JP (1996 - 2003)
Chinio, JP (2011)
Chino, JP (2000 - 2013)

Company Filing History:

52 out of 34,296

Seiko Epson Corporation

patents

Years Active: 1996-2013

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Areas of Expertise:

Integrated Circuit

Semiconductor Device

Electronic Instrument

Memory Cells

SRAM

Memory System

Circuit Board

Static RAM

Latch-Up Suppression

Pattern of Layers

Compact Dimensions

Fabrication Methods

52 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8547773 - Integrated circuit device and electronic instrument (2013-10-01),

2. 8547722 - Integrated circuit device and electronic instrument (2013-10-01),

3. 8339352 - Integrated circuit device and electronic instrument (2012-12-25),

4. 8310478 - Integrated circuit device and electronic instrument (2012-11-13),

5. 8188544 - Integrated circuit device and electronic instrument (2012-05-29),

6. 8081149 - Integrated circuit device and electronic instrument (2011-12-20),

7. 8054710 - Integrated circuit device and electronic instrument (2011-11-08),

8. 7986541 - Integrated circuit device and electronic instrument (2011-07-26),

9. 7859928 - Integrated circuit device and electronic instrument (2010-12-28),

10. 7782694 - Integrated circuit device and electronic instrument (2010-08-24),

11. 7764278 - Integrated circuit device and electronic instrument (2010-07-27),

12. 7755587 - Integrated circuit device and electronic instrument (2010-07-13),

13. 7616520 - Integrated circuit device and electronic instrument (2009-11-10),

14. 7613066 - Integrated circuit device and electronic instrument (2009-11-03),

15. 7593270 - Integrated circuit device and electronic instrument (2009-09-22),

Title: Takashi Kumagai - Innovative Inventor from Chino, Japan

Introduction: Takashi Kumagai is a renowned inventor hailing from Chino, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Takashi Kumagai holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to innovation.

Career Highlights: With a career spanning over two decades, Takashi Kumagai has worked with leading research institutions and tech companies, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Takashi Kumagai has collaborated with top engineers, scientists, and designers, fostering a culture of creativity and excellence that has led to numerous successful inventions and patents.

Conclusion: Takashi Kumagai's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in the global tech community.

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]