This inventor holds 17 USPTO granted patents and 1 EPO patent. Top assignees: Aisin Seiki Kabushiki Kaisha, Ngk Insulators, Inc., Aisin Seiki Company, Ltd.. Active years: 1980-2005.
Location History:
- Chityu, JP (1981)
- Chiryu, JP (1980 - 1990)
- Aichi, JP (1991 - 1995)
- Aichi-Pref, JP (2002)
- Chita-gun, JP (2000 - 2005)
- Nagoya, JP (2005)
Company Filing History:
10 out of 5,207 
6 out of 5,062 
1 out of 79 
Years Active: 1980-2005
Title: Tsutomu Mitsui: Innovator in Composite Materials
Introduction
Tsutomu Mitsui is a prominent inventor based in Chiryu, Japan. He has made significant contributions to the field of composite materials, holding a total of 17 patents. His innovative work focuses on enhancing the properties of materials to improve their performance in various applications.
Latest Patents
One of Mitsui's latest patents involves a composite material that includes an SiC porous ceramic sintered body. This body is formed by preliminarily sintering a porous structure that has a coefficient of thermal expansion lower than that of copper. The composite material is designed to construct a network within the ceramic body. Additionally, a copper alloy impregnates the porous ceramic sintered body, which consists of copper and one or more additive elements. These elements are prepared to impart a coefficient of thermal conductivity of 160 W/mK or higher. The additive elements can include up to 5% of at least one element selected from Be, Al, Si, Mg, Ti, Ni, Bi, Te, Zn, Pb, Sn, and mish metal, along with unavoidable impurities and gas components.
Another notable patent by Mitsui is related to heat sink material and the method of manufacturing it. In this process, graphite is placed in a case, which is then set in a furnace for sintering. This results in a porous sintered member of graphite. After removing the case from the furnace, it is placed in a recess of a press machine. Molten metal is poured into the case, and a punch is used to press the molten metal downward, allowing it to infiltrate the open pores of the porous sintered member.
Career Highlights
Throughout his career, Tsutomu Mitsui has worked with notable companies such as Aisin Seiki Kabushiki Kaisha and NGK Insulators, Inc. His experience in these organizations has contributed to his expertise in material science and engineering.
Collaborations
Mitsui has collaborated with several talented individuals in his field, including Shuhei Ishikawa and Kouichiro Hirosawa. These collaborations have fostered innovation and the development of advanced materials.
Conclusion
Tsutomu Mitsui is a distinguished inventor whose work in composite materials has led to significant advancements in the field. His innovative patents and collaborations highlight his commitment to enhancing material performance for