Katsumasa Yamamoto

This inventor holds 11 USPTO granted patents and 6 published patent applications, plus 1 CIPO patent and 9 EPO patents. Top assignee: Sumitomo Seika Chemicals Co., Ltd.. Active years: 1998-2023.

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

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

USPTO Granted Patents = 11 (Patent Applications = 6)

% Patents Active = 36.4

CIPO Patents = 1

EPO Patents = 9 (Patent Applications = 7)

Average Co-Inventor Count = 2.9

ph-index = 2

Forward Citations = 8(Granted Patents)

Location History:

Hyogo, JP (1998 - 2018)
Kako-gun, JP (2021 - 2023)

Company Filing History:

11 out of 302

Sumitomo Seika Chemicals Co., Ltd.

patents

Years Active: 1998-2023

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11603466 - Epoxy resin composition (2023-03-14),

2. 11292872 - Epoxy resin composition (2022-04-05),

3. 11111382 - Epoxy resin composition (2021-09-07),

4. 11091627 - Epoxy resin composition (2021-08-17),

5. 11066510 - Epoxy resin composition, process for producing same, and uses of said composition (2021-07-20),

6. 9963552 - Condensation-curable silicone resin composition, condensation-curable silicone resin cured product, and sealed optical semiconductor element (2018-05-08),

7. 9783717 - Addition-curable silicone resin composition, addition-curable silicone resin cured product, and sealed optical semiconductor element (2017-10-10),

8. 9181400 - Silicone resin composition, cured silicone resin, and sealed optical semiconductor element (2015-11-10),

9. 8540904 - Composition for ultraviolet absorbent substance and ultraviolet absorbent substance comprising same (2013-09-24),

10. 8216768 - Photoacid generator and photoreactive composition (2012-07-10),

11. 5834621 - Novel sulfur-containing compound and method for preparing the same (1998-11-10),

Title: Inventor Katsumasa Yamamoto

Introduction: Katsumasa Yamamoto is a renowned inventor based in Kako-gun, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Katsumasa Yamamoto holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative mindset and forward-thinking approach.

Career Highlights: With over two decades of experience in the industry, Katsumasa Yamamoto has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized the way we approach modern challenges.

Collaborations: Throughout his career, Katsumasa Yamamoto has collaborated with top companies and inventors worldwide, fostering a culture of innovation and knowledge sharing that has led to significant advancements in the field.

Conclusion: Katsumasa Yamamoto's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and researchers, leaving a lasting impact on the world of technology.

Profile summary based on public USPTO records.