Keiji Fuse

This inventor holds 13 USPTO granted patents, plus 2 CIPO patents and 2 EPO patents. Top assignees: Sumitomo Electric Industries, Limited, Sumitomo Electric Hardmetal Corp.. Active years: 1997-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Fuse. Retrieved from https://idiyas.com/inventor/keiji-fuse

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

Calculating rank

USPTO Granted Patents = 13

% Patents Active = 84.6

CIPO Patents = 2 (Patent Applications = 1)

EPO Patents = 2

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 93(Granted Patents)

Location History:

Yokohama, JP (2011)
Osaka, JP (1997 - 2012)

Company Filing History:

13 out of 10,652

Sumitomo Electric Industries, Limited

patents

1 out of 601

Sumitomo Electric Hardmetal Corp.

patents

where one patent can have more than one assignee

Years Active: 1997-2012

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8338744 - Condensing optical system, laser processing method and apparatus, and manufacturing method of brittle material blank (2012-12-25),

2. 7907341 - Laser processing method and laser processing apparatus (2011-03-15),

3. 7807942 - Laser processing method and laser processing apparatus (2010-10-05),

4. 7773315 - Laser optical device (2010-08-10),

5. 7440188 - Diffractive optical element (2008-10-21),

6. 7193791 - Tilt error reducing aspherical single lens homogenizer (2007-03-20),

7. 6937327 - Apparatus and method of measuring optical properties of diffractive optical element (2005-08-30),

8. 6775066 - Diffractive optical element (2004-08-10),

9. 6567226 - Method for designing a refractive or reflective optical system and method for designing a diffraction optical element (2003-05-20),

10. 6452132 - Laser hole boring apparatus (2002-09-17),

11. 6324015 - f&thgr; lens (2001-11-27),

12. 5889626 - Method and device for focusing laser beam (1999-03-30),

13. 5690845 - Optical device for laser machining (1997-11-25),

Title: Keiji Fuse: Innovator in Optical Systems and Laser Processing

Introduction

Keiji Fuse is a prominent inventor based in Osaka, Japan. He has made significant contributions to the fields of optical systems and laser processing. With a total of 13 patents to his name, Fuse has established himself as a key figure in innovation.

Latest Patents

Among his latest patents are a condensing optical system, a laser processing method and apparatus, and a manufacturing method for brittle material blanks. The condensing optical system is designed to create a condensed light spot that is small in size and has a large focal depth. This system addresses issues related to intensity distribution in the focal position. The laser processing method and apparatus aim to enhance the homogenization of beam intensity distribution in the irradiated region. This is achieved through a combination of advanced techniques, including the use of an ASE light generation section and a homogenizer.

Career Highlights

Throughout his career, Keiji Fuse has worked with notable companies such as Sumitomo Electric Industries and Sumitomo Electric Hardmetal Corporation. His work has been instrumental in advancing technologies related to laser processing and optical systems.

Collaborations

Fuse has collaborated with esteemed colleagues, including Kenichi Watatani and Manabu Shiozaki. These partnerships have contributed to the development of innovative solutions in his field.

Conclusion

Keiji Fuse's contributions to optical systems and laser processing demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of complex technologies and a drive to improve existing methods.

Profile summary based on public USPTO records.