OH

Osamu Hirakawa

TL Tokyo Electron Limited: 23 patents #215 of 5,567Top 4%
NC Nippon Piston Ring Co.: 7 patents #20 of 208Top 10%
IN Intel: 5 patents #7,174 of 30,777Top 25%
TL Tel Kyushu Limited: 4 patents #1 of 17Top 6%
PA Panasonic: 4 patents #6,180 of 21,108Top 30%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
NI Nikon: 3 patents #1,048 of 2,493Top 45%
TL Tokyo Electron Kyushu Limited: 1 patents #67 of 104Top 65%
Overall (All Time): #86,254 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
5002008 Coating apparatus and method for applying a liquid to a semiconductor wafer, including selecting a nozzle in a stand-by state Mitsuru Ushijima, Masami Akimoto, Yoshio Kimura, Noriyuki Anai 1991-03-26
4899686 Coating device Takayuki Toshima 1990-02-13
4863513 Iron-base anti-wear sintered alloy member Genkichi Umeha, Shigeru Urano, Shunsuke Takeguchi 1989-09-05
4790875 Abrasion resistant sintered alloy Shigeru Urano 1988-12-13
4665766 Shaft member Genkichi Umeha 1987-05-19
4649011 Method of making a cam shaft Genkichi Umeha, Shigeru Urano, Shunsuke Takegushi 1987-03-10
4644912 Cam shaft and method of manufacture Genkichi Umeha, Shigeru Urano, Shunsuke Takegushi 1987-02-24
4615310 Camshaft with lubricating oil supplying function Genkichi Umeha 1986-10-07
4595556 Method for manufacturing camshaft Genkichi Umeha, Shigeru Urano, Shunsuke Takeguchi 1986-06-17
4505485 Rotary seal with linear wear resistant treated layer 1985-03-19
4468075 Structure of electrical connecting device Masayoshi Tamura, Ryohei Kinoshita, Norio Matsubayashi, MITSUHARU MATSUMOTO, Toshiaki Sukeda 1984-08-28
4400795 Magnetic bubble memory device Syouzi Irie 1983-08-23
4368465 Method of actuating a plasma display panel Tadatsugu Hirose 1983-01-11