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For the Inventor, By the Inventor

Tokyo, Japan

Yoshio Hagihara

This inventor holds 54 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Imaging Systems (CPC class H04N). Top assignees: Olympus Corporation, Denso Corporation. Active years: 2009-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Hagihara. Retrieved from https://idiyas.com/inventor/yoshio-hagihara

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

USPTO Granted Patents = 54 

% Patents Active = 64.8

 

Average Co-Inventor Count = 1.1

ph-index = 4

Forward Citations = 135(Granted Patents)

Forward Citations (Not Self Cited) = 121(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hachioji, JP (2010 - 2014)
  • Tokyo, JP (2009 - 2024)

Company Filing History:

goldMedal54 out of 8,306 
 
Olympus Corporation
 patents
silverMedal3 out of 20,407 
 
Denso Corporation
 patents
where one patent can have more than one assignee

Years Active: 2009-2024

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Areas of Expertise:
Imaging Device
Endoscope System
A/D Conversion Circuit
Image Sensor
Solid-State Imaging Apparatus
Analog to Digital Converter
Data Transmission Circuit
Image Capturing Device
Signal Transmission Circuit
Reference Signal Generating Circuit
Clock Generation Circuit
Ramp Wave Generation Circuit
54 patents (USPTO):Explore Patents
1. 12108176 - Imaging device and endoscope system (2024-10-01),
2. 11877053 - Booster apparatus, imaging apparatus, endoscope and voltage conversion control method (2024-01-16),
3. 11843891 - Ad conversion device, imaging device, endoscope system, and ad conversion method (2023-12-12),
4. 11765478 - Imaging system and endoscope system (2023-09-19),
5. 11233967 - AD conversion circuit, imaging device, and endoscope system (2022-01-25),
6. 11096566 - Endoscope system (2021-08-24),
7. 10958283 - AD conversion circuit, imaging device, and endoscope system (2021-03-23),
8. 10588487 - Signal transmission circuit and endoscope system (2020-03-17),
9. 10432882 - Imaging device and endoscope system (2019-10-01),
10. 10154218 - Encoding circuit, ad conversion circuit, imaging device, and imaging system including a delay circuits having opposite polarity output terminals (2018-12-11),
11. 10129496 - Imaging device and imaging system (2018-11-13),
12. 9967491 - Imaging device and imaging system (2018-05-08),
13. 9918032 - Imaging device for reducing deterioration of A/D conversion accuracy (2018-03-13),
14. 9813645 - Image sensor, imaging device, endoscope, and endoscopic system (2017-11-07),
15. 9661252 - Image capturing device (2017-05-23),

Title: The Innovative Contributions of Yoshio Hagihara

Introduction: Yoshio Hagihara is a prominent inventor based in Tokyo, Japan, known for his extensive contributions to imaging technology. With an impressive portfolio of 54 patents, Hagihara has significantly impacted the fields of imaging devices and endoscopic systems.

Latest Patents: Among his latest innovations, Hagihara developed an imaging device that features a sophisticated voltage generation circuit and output circuit. This device includes a first capacitance element with a fifth terminal that allows it to store electric charges and generate a control voltage with precision. Additionally, he introduced a booster apparatus, which comprises a voltage conversion control circuit designed to generate a secondary power supply voltage based on a variety of input parameters, including a driving clock signal.

Career Highlights: Throughout his career, Yoshio Hagihara has collaborated with renowned companies, including Olympus Corporation and Denso Corporation. His work has led to groundbreaking innovations in imaging and endoscopic technologies, solidifying his reputation as a leading inventor in these fields.

Collaborations: Hagihara has worked closely with esteemed colleagues such as Susumu Yamazaki and Masashi Saito. These collaborations have fostered a creative environment that has contributed to his many innovative solutions and advancements in technology.

Conclusion: Yoshio Hagihara's dedication to innovation and his numerous patents illustrate his remarkable contributions to the tech world. His work continues to pave the way for advanced imaging technologies, ensuring significant advancements in medical and electronic fields.

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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