HI

Hironobu Ishikawa

Ngk Spark Plug Co.: 6 patents #306 of 1,594Top 20%
📍 Kasugai, JP: #68 of 97 inventorsTop 75%
Overall (All Time): #836,608 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10347521 Heating member, electrostatic chuck, and ceramic heater Yasuhiko Inui, Taichi KIBE, Jun Kurano 2019-07-09
7215508 Ceramic dynamic-pressure bearing and hard disk drive using the same Atsutoshi Sugiyama 2007-05-08
6702466 Ceramic dynamic-pressure bearing, motor having bearing, hard disk drive, polygon scanner, and method for manufacturing ceramic dynamic-pressure bearing Tetsuji Yogo, Junya Moribe 2004-03-09
6659647 Ceramic dynamic pressure bearing, motor with bearing, hard disk device, and polygon scanner Atsutoshi Sugiyama, Tetsuji Yogo 2003-12-09
6619847 Ceramic dynamic-pressure bearing, motor having bearing, hard disk drive, and polygon scanner Tetsuji Yogo 2003-09-16
6619848 Ceramic dynamic pressure bearing, motor with bearing, hard disc apparatus and polygon scanner Tetsuji Yogo, Takayoshi Morishita 2003-09-16