Tsukuru Katsuyama

This inventor holds 24 USPTO granted patents and 4 published patent applications, plus 2 CIPO patents and 1 EPO patent, primarily in Semiconductor Lasers. Top assignees: Sumitomo Electric Industries, Limited, Sumitomo Electric Ind., Inc.. Active years: 1994-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsukuru Katsuyama. Retrieved from https://idiyas.com/inventor/tsukuru-katsuyama

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

USPTO Granted Patents = 24 (Patent Applications = 4)

% Patents Active = 58.3

CIPO Patents = 2

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 2.4

ph-index = 6

Forward Citations = 88(Granted Patents)

Location History:

Kanagawa, JP (1996 - 2003)
Yokohama, JP (1994 - 2019)

Company Filing History:

23 out of 10,641

Sumitomo Electric Industries, Limited

patents

1 out of 4

Sumitomo Electric Ind., Inc.

patents

Years Active: 1994-2019

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Areas of Expertise:

Semiconductor Laser

Quantum Cascade Laser

Optical Device

Optical Waveguide

Surface Emitting Device

Light-Receiving Device

PN Junction

Multi-Beam Laser

AlGaInP Cladding

Integrated Device

Sorting Method

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10312666 - Semiconductor laser (2019-06-04),

2. 10277010 - Semiconductor laser (2019-04-30),

3. 9923337 - Quantum cascade laser (2018-03-20),

4. 9882347 - Quantum cascade laser array (2018-01-30),

5. 7986721 - Semiconductor optical device including a PN junction formed by a second region of a first conductive type semiconductor layer and a second conductive type single semiconductor layer (2011-07-26),

6. 7838893 - Semiconductor optical device (2010-11-23),

7. 7613217 - Semiconductor surface emitting device (2009-11-03),

8. 7405421 - Optical integrated device (2008-07-29),

9. 7379485 - Semiconductor optical device (2008-05-27),

10. 7356063 - Semiconductor surface emitting device (2008-04-08),

11. 7323722 - Semiconductor optical device (2008-01-29),

12. 7271422 - Semiconductor optical device (2007-09-18),

13. 7208774 - Semiconductor optical device (2007-04-24),

14. 7149375 - Optical waveguide module (2006-12-12),

15. 6690079 - Light-receiving device (2004-02-10),

Title: Tsukuru Katsuyama: Pioneering Female Inventor from Yokohama

Introduction: Tsukuru Katsuyama is a trailblazing inventor hailing from Yokohama, Japan, known for her innovative contributions to various fields.

Latest Patents: Tsukuru Katsuyama's most recent patents include advancements in sustainable energy solutions and cutting-edge medical technologies, showcasing her versatility and forward-thinking approach.

Career Highlights: Throughout her illustrious career, Tsukuru Katsuyama has been recognized for her groundbreaking inventions that have significantly impacted industries such as robotics, biotechnology, and environmental conservation. Her dedication to pushing the boundaries of innovation has earned her numerous accolades and awards.

Collaborations: Tsukuru Katsuyama has collaborated with leading research institutions, universities, and multinational corporations to further develop and implement her inventions on a global scale. Her collaborative efforts have resulted in the successful commercialization of several pioneering technologies.

Conclusion: Tsukuru Katsuyama's passion for innovation, coupled with her relentless pursuit of excellence, continues to inspire aspiring inventors worldwide. Her remarkable achievements serve as a testament to the power of creativity and perseverance in driving positive change and shaping the future of technology.

Profile summary based on public USPTO records.