Ichikawa, Japan

Koichi Tsutsumi

This inventor holds 2 USPTO granted patents. Top assignees: Onada Alc Co., Ltd., Onada Cement Co., Ltd, Onoda Alc Co., Ltd.. Active years: 1990-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Tsutsumi. Retrieved from https://idiyas.com/inventor/koichi-tsutsumi-al6n5zcb

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 7.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1990-1992

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2 patents (USPTO):Explore Patents

Title: Koichi Tsutsumi: Innovator in Hot Forming Mold Technology

Introduction

Koichi Tsutsumi is a notable inventor based in Ichikawa, Japan. He has made significant contributions to the field of materials science, particularly in the development of hot forming molds. With a total of 2 patents, Tsutsumi's work focuses on enhancing the efficiency and effectiveness of manufacturing processes.

Latest Patents

One of Tsutsumi's latest patents is for a hot forming mold and method of manufacturing the same. This invention provides a hot forming mold made of xonotlite group materials, such as xonotlite or wollastonite, which are recognized for their heat-resisting properties. By hot pressing these materials to achieve a high bulk density ranging from 0.6 to 2.20, a mold suitable for hot forming can be efficiently produced. The process involves filter pressing an aqueous slurry of xonotlite, drying the pressed product to remove moisture at temperatures below 700°C, and then cutting out the mold for use in molding plastics, glass, and similar materials. Furthermore, by heat treating this mold product at temperatures between 700°C and 1200°C, the resulting mold can be machined and utilized for superplastic forming of aluminum, titanium, and other materials.

Career Highlights

Throughout his career, Koichi Tsutsumi has worked with several companies, including Onada Cement Co., Ltd. and Onada Alc Co., Ltd. His experience in these organizations has contributed to his expertise in the field of materials and manufacturing processes.

Collaborations

Tsutsumi has collaborated with notable colleagues, including Koichi Tsukiyama and Hideaki Takahashi. These partnerships have likely enriched his work and led to innovative advancements in his field.

Conclusion

Koichi Tsutsumi's contributions to the development of hot forming molds demonstrate his commitment to innovation in materials science. His patents reflect a deep understanding of heat-resisting materials and their applications in manufacturing.

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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