Hiroshi Koizumi

This inventor holds 62 USPTO granted patents and 5 published patent applications and 12 EPO patents, primarily in Biological Signal Processing (CPC class H01L). Top assignees: Kabushiki Kaisha Topcon, Sony Corporation, Nippon Telegraph and Telephone Corporation. Active years: 1976-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Koizumi. Retrieved from https://idiyas.com/inventor/hiroshi-koizumi

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

USPTO Granted Patents = 62 (Patent Applications = 5)

% Patents Active = 90.3

EPO Patents = 12 (Patent Applications = 12)

Average Co-Inventor Count = 3.4

ph-index = 13

Forward Citations = 683(Granted Patents)

Forward Citations (Not Self Cited) = 623(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Ohmiya, JA (1976)
Ohmiya, JP (1981)
Nagaokakyo, JP (1995)
Tokyo-to, JP (1998 - 2000)
Sumida-ku, JP (2000)
Saitama, JP (1987 - 2005)
Atsugi, JP (2011)
Musashino, JP (2013 - 2014)
Odawara, JP (2016)
Kanagawa, JP (2002 - 2019)
Tokyo, JP (1986 - 2021)

Company Filing History:

15 out of 1,033

Kabushiki Kaisha Topcon

Nippon Telegraph and Telephone Corporation

Mitsubishi Denki Kabushiki Kaisha

patents

7. 2 out of 164

Ntt Electronics Corporation

patents

8. 1 out of 560

Calsonic Kansei Corporation

patents

9. 1 out of 21

Nippon Telephone and Telegraph Corporation

patents

10. 1 out of 7,651

Renesas Electronics Corporation

patents

11. 1 out of 8

Ricoh Technology Research, Inc.

patents

12. 1 out of 1

Tanaka Kogyo Corporation Limited

patent

13. 1 out of 1

Tokyo Kagaku Kakai Kabushiki Kaisha

patent

where one patent can have more than one assignee

Years Active: 1976-2026

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Areas of Expertise:

Substrate Processing

Biological Signal Measurement

Heartbeat Detection

Optical Modulator

Imaging Apparatus

Zoom Lens

Transimpedance Amplifier

Optical Receiver

Blood Pressure Meter

Automatic Urine Accumulator

Laser Light-Source

Color Correction System

62 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12636746 - Substrate processing apparatus (2026-05-26),

2. 12605914 - Substrate processing apparatus (2026-04-21),

3. 12552124 - Substrate processing apparatus (2026-02-17),

4. 12454032 - Substrate processing apparatus (2025-10-28),

5. 11049806 - Semiconductor device including semiconductor chip transmitting signals at high speed (2021-06-29),

6. 10881315 - Biological signal measurement system, biological information measurement apparatus, and biological information extraction algorithm changing method (2021-01-05),

7. 10750969 - Heartbeat detection method and heartbeat detection device (2020-08-25),

8. 10243664 - Optical modulator driver circuit and optical transmitter (2019-03-26),

9. 10191254 - Wide-angle lens and imaging unit (2019-01-29),

10. 10172531 - Heartbeat detection method and heartbeat detection device (2019-01-08),

11. 9853618 - Transimpedance amplifier circuit (2017-12-26),

12. 9448740 - Storage apparatus and hierarchy control method (2016-09-20),

13. 9160458 - Optical signal detection circuit and optical receiver (2015-10-13),

14. 9042030 - Zoom lens and imaging apparatus (2015-05-26),

15. 9025970 - Optical signal cutoff detection circuit and optical receiver (2015-05-05),

Title: The Innovative Journey of Hiroshi Koizumi

Introduction: Hiroshi Koizumi is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hiroshi Koizumi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous innovation and forward-thinking approach.

Career Highlights: With a career spanning over two decades, Hiroshi Koizumi 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, Hiroshi Koizumi has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of creativity and excellence in all his projects.

Conclusion: Hiroshi Koizumi's passion for innovation and his relentless pursuit of technological advancement have solidified his position as a visionary inventor in the global innovation landscape.

Profile summary based on public USPTO records.