MM

Masaru Muranishi

HI Hitachi: 5 patents #158 of 3,950Top 4%
HC Hitachi Cable: 1 patents #9 of 82Top 15%
📍 Ibaraki, JP: #16 of 769 inventorsTop 3%
Overall (2002): #8,557 of 266,432Top 4%
5
Patents 2002

Issued Patents 2002

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6487330 Optical switch, method of manufacturing same, and optical communication equipment using same Masaya Horino, Kazutaka Sato, Teruhisa Akashi, Norifumi Komatsu, Dai Kobayashi +1 more 2002-11-26
6469866 Spindle motor and magnetic disc device with hydrodynamic bearing Katsutoshi Nii, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more 2002-10-22
6369980 Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit Katsutoshi Nii, Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase +4 more 2002-04-09
6369981 Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit Katsutoshi Nii, Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase +4 more 2002-04-09
6356408 Magnetic disk apparatus, including spindle motor having air flow passage in hub for pressure balance Katsutoshi Nii, Kenji Tomida, Kouki Uefune, Shozo Saegusa, Yuuichi Yanagase 2002-03-12