Yoshiharu Yamamoto

This inventor holds 51 USPTO granted patents, primarily in Optical Systems (CPC class 3592). Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 1985-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiharu Yamamoto. Retrieved from https://idiyas.com/inventor/yoshiharu-yamamoto

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

USPTO Granted Patents = 51

% Patents Active = 64.7

Average Co-Inventor Count = 2.7

ph-index = 12

Forward Citations = 425(Granted Patents)

Forward Citations (Not Self Cited) = 414(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Toyonaka, JP (1985 - 2010)
Osaka, JP (1991 - 2013)

Company Filing History:

47 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

4 out of 16,454

Panasonic Corporation

patents

Years Active: 1985-2013

Loading Chart...

Areas of Expertise:

Antireflection Structure

Optical Scanner

Illumination Optical System

Zoom Lens

Wide-Angle Imaging

Distance-Measuring Apparatus

Projection Systems

Contact Detection Sensor

Light-Absorbing Member

Reflective Optical Device

Image Forming Apparatus

Infrared Detector

51 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8419955 - Antireflection structure, lens barrel including antireflection structure, method for manufacturing antireflection structure (2013-04-16),

2. 7850319 - Light-absorbing member (2010-12-14),

3. 7787184 - Member having antireflection structure (2010-08-31),

4. 7483086 - Illumination optical system, projection video system using the same, and integral-type video display (2009-01-27),

5. 7433125 - Light quantity distribution control element and optical apparatus using the same (2008-10-07),

6. 7426085 - Lens barrel, imaging device and camera (2008-09-16),

7. 7408703 - Wide-angle imaging optical system and wide-angle imaging apparatus surveillance imaging apparatus vehicle-mounted imaging apparatus and projection apparatus using the wide-angle imaging optical system (2008-08-05),

8. 7317582 - Zoom lens, video enlarging/projecting system, video projector, rear projector, and multivision system (2008-01-08),

9. 7292321 - Contact detection sensor and contact detection method (2007-11-06),

10. 7283211 - Distance-measuring optical apparatus, distance-measuring method, distance-measuring system, in-vehicle imager, and in-vehicle driving support apparatus (2007-10-16),

11. 7265886 - Optical scanner and image forming apparatus (2007-09-04),

12. 7256942 - Single lens element, light source device and scanning optical device (2007-08-14),

13. 7239448 - Light quantity distribution control element and optical apparatus using the same (2007-07-03),

14. 7212254 - Illumination optical system, projection video system using the same, and integral-type video display (2007-05-01),

15. 7173645 - Optical scan apparatus and color image formation apparatus (2007-02-06),

Title: **Yoshiharu Yamamoto: A Pioneer in Antireflection Technology**

Introduction

Yoshiharu Yamamoto, a prolific inventor based in Toyonaka, Japan, has made significant contributions to the field of optics with a remarkable portfolio of 51 patents. His innovations have particularly focused on antireflection structures, enhancing the efficiency and performance of various optical devices.

Latest Patents

Yamamoto's latest patents revolve around an advanced antireflection structure, a lens barrel incorporating this technology, and a method for manufacturing such structures. His innovative antireflection structure can be crafted into a desired shape and features a resin layer embedded with inorganic material fine particles. This structure includes finely formed concaves with an average inner diameter shorter than or equal to the minimum wavelength of light that needs to be suppressed. By engineering these fine concaves, Yamamoto effectively reduces the equivalent refractive index at the surface of the resin layer.

Furthermore, his recent inventions highlight a light-absorbing member featuring a substrate capable of absorbing light reflection. This member boasts an antireflection structure with structural elements arranged on a curved surface in a specific array, optimized for light absorption and efficiency.

Career Highlights

Yoshiharu Yamamoto has had an impressive career, working with renowned companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His tenure at these institutions has enabled him to leverage his inventive talents to develop groundbreaking optical technologies.

Collaborations

Throughout his career, Yamamoto has collaborated with esteemed colleagues, including Motonobu Yoshikawa and Yasuo Nakajima. These partnerships have facilitated a dynamic exchange of ideas and expertise, further propelling his innovative contributions to the field.

Conclusion

Yoshiharu Yamamoto's extensive patent portfolio and groundbreaking work in antireflection technology underscore his status as a leading innovator in optics. Through his inventive methodologies and collaborations, he continues to influence the future of optical devices, ensuring enhanced performance and efficiency in the industry. His legacy is marked by his commitment to innovation and excellence in engineering.

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]