Location History:
- Onsen-gun, JP (1996)
- Onsen, JP (1996)
- Ehime-ken, JP (1996 - 1997)
- Ehime, JP (1993 - 2004)
Company Filing History:
7 out of 27,375 
1 out of 109 Years Active: 1993-2004
Title: Haruhiro Tsutsumi: Innovator in Biosensor Technology
Introduction
Haruhiro Tsutsumi is a notable inventor based in Ehime, Japan. He has made significant contributions to the field of biosensor technology, holding a total of 7 patents. His innovative work focuses on improving the efficiency and productivity of biosensors, which are crucial in various medical applications.
Latest Patents
One of Tsutsumi's latest patents involves a biosensor that features an electrode layer, which includes a working electrode and a counter electrode, along with a reagent layer formed on an insulating support. This design incorporates a spacer with a long and narrow cut-out portion that, when bonded to a cover with an air hole, creates a cavity capable of sucking blood as a liquid sample through capillary action. The side walls of the spacer and cover facing the cavity are treated to enhance hydrophilicity, promoting blood suction and improving sensor performance. Additionally, he has developed a method and device for quantifying a substrate in a sample liquid by electrochemically measuring the amount of an electron acceptor reduced during a reaction with an oxidoreductase. This biosensor includes an electrically insulating substrate and an electrode system that features a working electrode, a counter electrode, and a third electrode for detecting liquid junctions.
Career Highlights
Throughout his career, Tsutsumi has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Kyoto Daiichi Kagaku Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced biosensor technologies.
Collaborations
Tsutsumi has collaborated with notable individuals in his field, including Shiro Nankai and Toshihiko Yoshioka. These partnerships have likely enhanced his research and development efforts, leading to innovative solutions in biosensor technology.
Conclusion
Haruhiro Tsutsumi's contributions to biosensor technology demonstrate his commitment to innovation and improvement in medical diagnostics. His patents reflect a deep understanding of the complexities involved in biosensor design and functionality.