This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Nissan Motor Company Limited. Active years: 1981-1988.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 42,740 
1 out of 13,420 
Years Active: 1981-1988
Title: Tsutomu Kooriyama: Innovator in Air Flow Measurement and Spark Plug Technology
Introduction
Tsutomu Kooriyama is a notable inventor from Katsuta, Japan, recognized for his contributions to the fields of air flow measurement and ignition systems. With a total of 2 patents, Kooriyama has made significant advancements that enhance the performance and reliability of various devices.
Latest Patents
One of Kooriyama's latest patents is the hot wire air flow meter. This innovative device features a platinum wire coiled in a specific formation, with its outer surface overcoated with a glass member. The coiled wire is welded to a supporting member, creating an exothermic resistor that operates without a bobbin. This design allows for improved transient response characteristics during sudden changes in air flow, as the heat generated is primarily dissipated through air rather than the supporting member.
Another significant patent is the device for electrically connecting a spark plug to a high-voltage cable. This device is designed to minimize the antenna effect by ensuring that the connecting member's maximum length in the axial direction of the spark plug does not exceed 25 mm. This reduction in length helps to minimize undesirable radiation of noise, which can interfere with other electronic units.
Career Highlights
Throughout his career, Tsutomu Kooriyama has worked with prominent companies such as Hitachi, Ltd. and Nissan Motor Company Limited. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Kooriyama has collaborated with notable coworkers, including Hiromitsu Nagae and Hiroatsu Tokuda. Their combined efforts have led to advancements in the technologies they have worked on together.
Conclusion
Tsutomu Kooriyama's contributions to the fields of air flow measurement and ignition systems demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving device performance and reliability, making him a significant figure in the world of invention.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile