Isao Yoshizaki

This inventor holds 10 USPTO granted patents. Top assignees: Hitachi, Ltd., Sega Enterprises, Ltd.. Active years: 1988-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Yoshizaki. Retrieved from https://idiyas.com/inventor/isao-yoshizaki

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 6.4

ph-index = 8

Forward Citations = 187(Granted Patents)

Location History:

Kanagawa, JP (1993)
Yokohama, JP (1988 - 1996)

Company Filing History:

Sega Enterprises, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1988-1996

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5513037 - Rear-projection screen and a rear projection image display employing the (1996-04-30),

2. 5500747 - Ultra-wide angle liquid crystal projector system (1996-03-19),

3. 5400114 - Rear-projection screen and a rear projection image display employing the (1995-03-21),

4. 5272540 - Temperature compensating lens system for projection television (1993-12-21),

5. 5255122 - Projection lens system for projection type television (1993-10-19),

6. 5200814 - Video projector with optical color balance (1993-04-06),

7. 5103302 - Optical system for projection type image display device (1992-04-07),

8. 5066099 - Rear projection screen and method of producing the same (1991-11-19),

9. 4948237 - Projection lens system (1990-08-14),

10. 4729031 - Coupling system for image projection (1988-03-01),

Title: Isao Yoshizaki: Innovator in Projection Technology

Introduction

Isao Yoshizaki is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of projection technology, holding a total of 10 patents. His innovative designs have enhanced the quality and efficiency of image display systems.

Latest Patents

Yoshizaki's latest patents include a rear-projection screen and a rear projection image display employing advanced lens technology. The rear-projection screen features a Fresnel lens sheet and a lenticular lens sheet, designed to improve focusing characteristics and enhance vertical directional characteristics. This technology allows for high brightness and high contrast image display. Another notable invention is the ultra-wide angle liquid crystal projector system, which utilizes a light source, a liquid crystal panel, and a curved screen to project images with an angle of projection of at least 120 degrees.

Career Highlights

Throughout his career, Isao Yoshizaki has worked with renowned companies such as Hitachi, Ltd. and Sega Enterprises, Ltd. His experience in these organizations has contributed to his expertise in developing cutting-edge projection technologies.

Collaborations

Yoshizaki has collaborated with notable individuals in the industry, including Masayuki Muranaka and Hiroki Yoshikawa. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Isao Yoshizaki's contributions to projection technology have made a lasting impact on the industry. His inventive spirit and dedication to enhancing image display systems continue to inspire future innovations.

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]