KH

Koutarou Hirai

Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
Overall (All Time): #757,506 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6720690 Vibration motor holding apparatus and portable electronic equipment having the same Noriyoshi Satoh 2004-04-13
6411198 Portable terminal device Masayuki Yanagida, Ai Takasu 2002-06-25
6385466 Portable terminal device Masayuki Yanagida 2002-05-07
6345172 Radio system which overcomes signal interference from clock oscillation circuit Masaki Hoshino 2002-02-05
6274955 Vibration motor holding apparatus and portable electronic equipment having the same Noriyoshi Satoh 2001-08-14
5584003 Control systems having an address conversion device for controlling a cache memory and a cache tag memory Seiji Yamaguchi, Toru Kakiage, Tomohiro Kurozumi, Shiro Yoshioka 1996-12-10
5465344 Microprocessor with dual-port cache memory for reducing penalty of consecutive memory address accesses Seiji Yamaguchi 1995-11-07