KT

Ken Takahashi

HI Hitachi: 5 patents #117 of 3,771Top 4%
HM Hitachi Maxell: 2 patents #13 of 93Top 15%
Sumitomo Electric Industries: 2 patents #693 of 4,178Top 20%
Overall (2004): #3,817 of 270,089Top 2%
7
Patents 2004

Issued Patents 2004

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6801397 Glass substrate for a magnetic disk, a magnetic disk which can be formed with a stable texture and a magnetic disk device Hiroki Yamamoto, Takashi Namekawa, Takashi Naito, Yasutaka Suzuki, Akira Kato +4 more 2004-10-05
6790502 Optically functional element and production method and application therefor Hiroki Yamamoto, Takashi Naito, Motoyasu Terao, Toshimichi Shintani, Fumiyoshi Kirino +5 more 2004-09-14
6749955 Information recording media and information recording drive Fumiyoshi Kirino, Nobuyuki Inaba, Hiroki Yamamoto, Takashi Naitou, Eiji Koyama +3 more 2004-06-15
6746749 Magnetic recording disk Fumiyoshi Kirino, Nobuyuki Inaba, Hiroki Yamamoto, Takashi Naitou, Motoyasu Terao +3 more 2004-06-08
6735047 Magnetic head and magnetic recording/reproducing apparatus Kenji Hasegawa, Shunsaku Muraoka, Akinaga Natsui, Koichi Osano 2004-05-11
6700852 Information recording medium with recording film with cobalt oxide crystalline particles, and information recording device including the same Hiroki Yamamoto, Takashi Naito, Sumio Hosaka, Motoyasu Terao, Fumiyoshi Kirino +2 more 2004-03-02
6694875 Screen printing method and screen printing apparatus Naoichi Chikahisa, Yousuke Nagasawa, Takao Naito, Akihiko Wachi, Seishiro Yanachi +2 more 2004-02-24