Nozomi Tsukihara

This inventor holds 15 USPTO granted patents, plus 1 CIPO patent and 9 EPO patents. Top assignee: Sumitomo Electric Hardmetal Corp.. Active years: 2014-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nozomi Tsukihara. Retrieved from https://idiyas.com/inventor/nozomi-tsukihara

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

USPTO Granted Patents = 15

% Patents Active = 100.0

CIPO Patents = 1 (Patent Applications = 4)

EPO Patents = 9 (Patent Applications = 15)

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 5(Granted Patents)

Company Filing History:

15 out of 597

Sumitomo Electric Hardmetal Corp.

patents

Years Active: 2014-2025

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12383963 - Cutting tool (2025-08-12),

2. 12370606 - Cutting tool (2025-07-29),

3. 11554421 - Cutting tool and method of manufacturing the same (2023-01-17),

4. 11440108 - Rotary cutting tool (2022-09-13),

5. 11065692 - Diamond-coated tool (2021-07-20),

6. 10981235 - Rotary cutting tool and method of manufacturing the same (2021-04-20),

7. 10272498 - Composite sintered material and surface-coated boron nitride sintered material tool (2019-04-30),

8. 10030299 - Surface-coated boron nitride sintered body tool (2018-07-24),

9. 10016813 - Surface-coated boron nitride sintered body tool (2018-07-10),

10. 9956619 - Cutting insert and cutting tool (2018-05-01),

11. 9943911 - Surface-coated boron nitride sintered body tool (2018-04-17),

12. 9884790 - Cutting tool (2018-02-06),

13. 9850177 - Surface-coated boron nitride sintered body tool (2017-12-26),

14. 9056437 - Surface-coated sintered body (2015-06-16),

15. 8871340 - Surface-coated sintered body (2014-10-28),

Title: Innovations by Nozomi Tsukihara

Introduction

Nozomi Tsukihara is a prominent inventor based in Itami, Japan. He has made significant contributions to the field of cutting tools, holding a total of 15 patents. His work focuses on enhancing the performance and durability of cutting tools through innovative designs and materials.

Latest Patents

Tsukihara's latest patents include advanced cutting tools that feature unique coating films. One of his patents describes a cutting tool that comprises a substrate and a coating film. This coating film consists of a first layer with a hardness of 25 GPa or more and 40 GPa or less, and a second layer with specific hardness ratios. Another patent details a cutting tool with a multilayer structure layer, where the first and second unit layers are alternately layered. This design aims to optimize the cutting performance by manipulating the interplanar spacing of the layers.

Career Highlights

Tsukihara has built a successful career at Sumitomo Electric Hardmetal Corporation, where he has been instrumental in developing cutting-edge technologies. His expertise in material science and engineering has led to numerous innovations that have improved the efficiency of cutting tools in various industrial applications.

Collaborations

Throughout his career, Tsukihara has collaborated with notable colleagues, including Katsumi Okamura and Makoto Setoyama. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Nozomi Tsukihara's contributions to the field of cutting tools exemplify the impact of innovative thinking in engineering. His patents reflect a commitment to advancing technology and improving industrial processes.

Profile summary based on public USPTO records.