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For the Inventor, By the Inventor

Omiya, Japan

Shigeo Mizukawa

This inventor holds 11 USPTO granted patents. Top assignee: Fuji Photo Optical Co., Ltd.. Active years: 1977-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeo Mizukawa. Retrieved from https://idiyas.com/inventor/shigeo-mizukawa

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 6

Forward Citations = 74(Granted Patents)


Location History:

  • Ageo, JA (1977)
  • Omiya, JP (1992 - 1998)

Company Filing History:

goldMedal11 out of 1,279 
 
Fuji Photo Optical Co., Ltd.
 patents

Years Active: 1977-1998

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11 patents (USPTO):Explore Patents
1. 5771408 - Fixed focus camera shooting hyperfocal distance (1998-06-23),
2. 5721973 - Dual-focus change-over camera (1998-02-24),
3. 5631772 - Telescope provided with automatically opening and closing cover (1997-05-20),
4. 5530496 - Overhead projector (1996-06-25),
5. 5504547 - Camera provided with binocular stereoscopic finder (1996-04-02),
6. 5390047 - Stereoviewer and package (1995-02-14),
7. 5381266 - Stereoviewer including lenses of varying focal distance (1995-01-10),
8. 5313239 - Shutter apparatus for stereoscopic cameras (1994-05-17),
9. 5218470 - Stereoviewer including holder portions for inclining stereoscopic (1993-06-08),
10. 5127734 - Laser interferometer for inspecting the surface of a specimen (1992-07-07),
11. 4005460 - Photographic camera with cover for exposure conditions selector means (1977-01-25),

Title: Shigeo Mizukawa: Innovator in Camera Technology

Introduction

Shigeo Mizukawa is a prominent inventor known for his contributions to camera technology. He is based in Omiya, Japan, and has been awarded a total of 11 patents throughout his career. His innovative designs have significantly impacted the field of photography.

Latest Patents

Mizukawa's latest patents include a fixed focus camera designed to shoot at hyperfocal distances. This camera features a lens section that can be moved to a hyperfocal distance position, allowing for a shorter minimum object distance when shooting. The design incorporates a diaphragm member with a rotating mechanism to control light intake, enabling effective shooting at various distances.

Another notable invention is the dual-focus change-over camera. This camera allows users to switch between telescope and wide-angle photography with ease. It is designed to be compact, lightweight, and cost-effective. The camera includes a movable finder change-over member that establishes two finder openings for different focal distances, enhancing the versatility of the device.

Career Highlights

Mizukawa has made significant strides in the camera industry while working at Fuji Photo Optical Co., Ltd. His innovative spirit and technical expertise have led to the development of groundbreaking camera technologies that cater to both amateur and professional photographers.

Collaborations

Throughout his career, Mizukawa has collaborated with notable colleagues, including Tsuneo Yokoyama and Shigenori Ohi. These partnerships have fostered a creative environment that has contributed to the advancement of camera technology.

Conclusion

Shigeo Mizukawa's contributions to camera technology through his innovative patents have made a lasting impact on the photography industry. His work continues to inspire future generations of inventors and photographers alike.

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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