YK

Yoshio Kawai

HS Hitachi Automotive Systems: 21 patents #36 of 1,636Top 3%
HA Hitachi Astemo: 10 patents #26 of 1,276Top 3%
KK Kureha Kagaku Kogyo: 10 patents #52 of 607Top 9%
Casio Computer Co.: 8 patents #310 of 1,970Top 20%
MC Murata Manufacturing Co.: 4 patents #1,804 of 5,295Top 35%
TO Tokico: 3 patents #85 of 359Top 25%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
OC Osaka Gas Co.: 2 patents #129 of 689Top 20%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
OC Oki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
📍 Hitachinaka, JP: #35 of 2,447 inventorsTop 2%
Overall (All Time): #37,360 of 4,157,543Top 1%
61
Patents All Time

Issued Patents All Time

Showing 51–61 of 61 patents

Patent #TitleCo-InventorsDate
4676258 Device for hyperthermia Kiyoshi Inokuchi, Keizo Sugimachi, Toshiharu Shirakami, Hidenobu Kai, Tetsuya Hotta 1987-06-30
4662383 Endotract antenna device for hyperthermia Akira Sogawa, Kiyoshi Inokuchi, Keizo Sugimachi, Hidenobu Kai, Tetsuya Hotta 1987-05-05
4617104 Cell unit for observing electrophoresis Kiyoshi Kitagawa, Kazue Endo, Chikau Onodera 1986-10-14
4588159 Pinch valve device Kiyoshi Kitagawa 1986-05-13
4570039 Keyswitch structure Hiroshi Osawa, Isao Kurashima 1986-02-11
4515676 Cell unit for observing electrophoresis Kiyoshi Kitagawa 1985-05-07
4456513 Method of and apparatus for measuring electrophoretic mobility Toshiharu Shirakami 1984-06-26
4433299 Method and apparatus for measuring interfacial electrokinetic phenomena Kiyoshi Kitagawa 1984-02-21
4293533 Method for producing solid carbon material having high flexural strength Kiro Asano, Humio Tamura, Yushi Nezu, Tsuyoshi Saito 1981-10-06
4262318 Zinc-oxide surge arrester Shingo Shirakawa, Yutaka Kitano, Siniti Owada 1981-04-14
4226633 Raw composition for carbon articles Kiro Asano, Fumio Tamura, Kiyoshi Yamaki 1980-10-07