This inventor holds 3 USPTO granted patents. Top assignees: Nippon Steel Corporation, Mitsui High-Tec Incorporated. Active years: 1981-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kitakyushu, JP (1981 - 1982)
- Tokyo, JP (1986)
Company Filing History:
3 out of 3,713 
1 out of 192 
Years Active: 1981-1986
Title: Hiromichi Koshiishi: Innovator in Electrical Steel Technology
Introduction
Hiromichi Koshiishi is a notable inventor based in Kitakyushu, Japan. He has made significant contributions to the field of electrical machinery and devices, holding a total of 3 patents. His work focuses on improving the efficiency and effectiveness of processes related to electrical steel.
Latest Patents
One of his latest patents is a method for annealing a core blank used in electric machinery and devices. This invention relates to a method for annealing a core blank of a transformer or similar device to relieve the stress generated in the electrical steel sheet sections due to blanking. The method improves upon conventional resistance or gas-heating techniques by utilizing induction heating at a power input range of 0.5 to 3 kW/kg of the core blank. This approach minimizes shape variation in the core blank due to induction heating. Another significant patent involves a finish annealing process for grain-oriented electrical steel strips or sheets. This improvement includes coating the steel strip or sheet with an annealing separator that has a water content of no more than 10%, drying the coated material, forming it into a strip coil, and finish annealing the coil within an inner cover of an annealing furnace while controlling the gas atmosphere pressure.
Career Highlights
Throughout his career, Hiromichi Koshiishi has worked with prominent companies such as Nippon Steel Corporation and Mitsui High-Tec Incorporated. His experience in these organizations has allowed him to develop and refine his innovative techniques in electrical steel processing.
Collaborations
Hiromichi has collaborated with notable coworkers, including Sigeki Eguchi and Hisahumi Sakamoto. Their combined expertise has contributed to advancements in the field of electrical machinery.
Conclusion
Hiromichi Koshiishi's contributions to electrical steel technology through his patents and career achievements highlight his role as an influential inventor. His innovative methods continue to impact the industry positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile