Location History:
- Aichi, JA (1976)
- Chita, JP (1984)
- Aichi, JP (1983 - 1985)
- Iwamizawa, JP (1991)
Company Filing History:
Years Active: 1976-1991
Title: Fumio Takeuchi: Innovator in Semiconductive Ceramics
Introduction
Fumio Takeuchi is a prominent inventor based in Aichi, Japan. He has made significant contributions to the field of semiconductive ceramics, holding a total of 8 patents. His work focuses on innovative compositions that enhance the performance of electronic components.
Latest Patents
One of his latest patents is a composition for a reduction-reoxidation type semiconductive ceramic capacitor. This composition consists substantially of 100 mol % of a barium composite oxide, which includes BaTiO.sub.3 and BaZrO.sub.3, with a BaZrO.sub.3 content ranging from 0 to 20 mol %. It also incorporates 0.3 to 3.0 mol % of Bi.sub.2 O.sub.3 and 0.1 to 8.5 mol % of at least one member selected from TiO.sub.2 and ZrO.sub.2. This innovative composition demonstrates a breakdown voltage of not less than 400 V, an insulation resistance of not less than 10.sup.9 .OMEGA., and an electrostatic capacity of not less than 0.65 .mu.F/cm.sup.2 per unit surface area, with a magnitude, tan .delta., of less than 2.5%. Another notable patent is a ceramic composition for a reduction-reoxidation type semiconductive capacitor, which includes barium titanate or a combination of barium titanate and strontium titanate, titanium oxide, and various other oxides. This composition exhibits a breakdown voltage of not less than 900 V and an insulation resistance of not less than 10.sup.10 .OMEGA., showcasing its potential for high-performance applications.
Career Highlights
Fumio Takeuchi is currently associated with Nippon Oil Fats Co., Ltd., where he continues to innovate in the field of semiconductive materials. His extensive research and development efforts have positioned him as a key figure in advancing technology in this area.
Collaborations
He has collaborated with notable coworkers, including Masao Takahashi and Hiroshi Sakai, contributing to various projects that enhance the capabilities of semiconductive ceramics.
Conclusion
Fumio Takeuchi's work in semiconductive ceramics has led to significant