Koutarou Koizumi

HI Hitachi: 1 patents #17,742 of 28,497Top 65%

HS Hitachi Microcomputer System: 1 patents #104 of 257Top 45%

📍 Kodaira, JP: #739 of 1,073 inventorsTop 70%

Overall (All Time): #3,683,082 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5747387	Removal method of organic matter and system for the same	Sukeyoshi Tsunekawa, Kazuhiko Kawai, Maki Shimoda, Katsuhiko Itoh, Haruo Itoh +1 more	1998-05-05