Saitama, Japan

Takashi Tsuyumu

This inventor holds 2 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Honda Motor Co., Ltd., Daido Steel Co., Ltd., Sanyo Special Steel Co., Ltd.. Active years: 2010-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Tsuyumu. Retrieved from https://idiyas.com/inventor/takashi-tsuyumu

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

USPTO Granted Patents = 2 

% Patents Active = 50.0

 

Average Co-Inventor Count = 4.5

ph-index = 1

Forward Citations = 33(Granted Patents)


Location History:

  • Wako, JP (2010)
  • Saitama, JP (2017)

Company Filing History:


Years Active: 2010-2017

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2 patents (USPTO):Explore Patents

Title: Innovations by Takashi Tsuyumu

Introduction

Takashi Tsuyumu is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of materials science, particularly in the development of heat-resistant steels and advanced materials for automotive applications. With a total of two patents to his name, Tsuyumu's work reflects a commitment to innovation and engineering excellence.

Latest Patents

One of Tsuyumu's latest patents is for a heat-resistant steel designed specifically for exhaust valves. The objective of this invention is to provide a steel with relatively low nickel content while maintaining high mechanical characteristics such as tensile strength, fatigue strength, wear resistance, and hardness at elevated temperatures. This steel composition includes specific ranges of carbon, nitrogen, chromium, nickel, manganese, molybdenum, silicon, and niobium, ensuring excellent oxidation resistance.

Another significant patent involves a raw material powder for laser-clad valve seats. This invention focuses on enhancing productivity, cladding properties, wear resistance, and finishing properties. The raw material powder consists of a mixture of a copper-based alloy and an iron or cobalt-based alloy, designed to improve the performance and durability of valve seats in various applications.

Career Highlights

Throughout his career, Takashi Tsuyumu has worked with prominent companies such as Honda Motor Co., Ltd. and Sanyo Special Steel Co., Ltd. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in automotive and materials technology.

Collaborations

Tsuyumu has collaborated with notable colleagues, including Toshiyuki Sawada and Akihiko Yanagitani. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

In summary, Takashi Tsuyumu is a distinguished inventor whose work in heat-resistant materials and advanced engineering solutions has made a significant impact in his field. His patents reflect a deep understanding of material properties and their applications in the automotive industry.

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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