HK

Hiroshi Koizumi

KT Kabushiki Kaisha Toshiba: 21 patents #1,382 of 21,451Top 7%
TL Tokyo Electron Limited: 19 patents #307 of 5,567Top 6%
TO Topcon: 15 patents #44 of 684Top 7%
SO Sony: 13 patents #3,381 of 25,231Top 15%
NT NTT: 13 patents #292 of 4,871Top 6%
HI Hitachi: 8 patents #5,191 of 28,497Top 20%
FI Fujikin Incorporated: 5 patents #85 of 318Top 30%
MC Mitutoyo Mfg. Co.: 5 patents #7 of 118Top 6%
Canon: 4 patents #10,118 of 19,416Top 55%
UN Unknown: 4 patents #4,220 of 83,584Top 6%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
MI Mitutoyo: 3 patents #276 of 721Top 40%
NC Nissei Plastic Industrial Co.: 2 patents #80 of 189Top 45%
NE Ntt Electronics: 2 patents #99 of 358Top 30%
FI Fujifilm Business Innovation: 1 patents #3,579 of 5,238Top 70%
NT Nippon Telephone And Telegraph: 1 patents #8 of 84Top 10%
RE Renesas Electronics: 1 patents #2,739 of 4,529Top 65%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
RR Ricoh Technology Research: 1 patents #2 of 9Top 25%
SO Socionext: 1 patents #229 of 541Top 45%
TC Tanaka Kogyo Co.: 1 patents #3 of 14Top 25%
TK Tokyo Kogaku Kikai: 1 patents #65 of 143Top 50%
V- V-Tex: 1 patents #8 of 18Top 45%
CK Calsonic Kansei: 1 patents #307 of 675Top 50%
Overall (All Time): #11,527 of 4,157,543Top 1%
112
Patents All Time

Issued Patents All Time

Showing 101–112 of 112 patents

Patent #TitleCo-InventorsDate
5274709 Speaker device for television receiver 1993-12-28
5057102 Contrast adjustor for aiming laser Yuko Tomioka, Masatsugu Kijima 1991-10-15
4956139 Method of producing an exposure blade Hideaki Kawata, Katsumi Arai, Koji Miyamoto, Tadaaki Ichikawa, Koji Ogata 1990-09-11
4952859 Stepping motor Akira Torisawa, Katsumi Yoshida, Hiroyuki Yoshikawa 1990-08-28
4763286 Measured data pass-fail discriminating apparatus Takeji Nishimura 1988-08-09
4736313 Digital indication type length measuring system Takeji Nishimura 1988-04-05
4711034 Electronic measuring device 1987-12-08
4692924 Laser treatment apparatus Masatsugu Kijima, Sinya Tanaka 1987-09-08
D288814 Data processor for measuring instruments Seigo Takahashi, Takeji Nishimura 1987-03-17
D285958 Water filter Hideki Takayama, Hikaru Kaji, Masatoshi Tanabe 1986-09-30
D274705 Dial gage Shingo Nishina, Yoshio Sanoki, Yoshikazu Kikuchi 1984-07-17
4272653 Loudspeaker and a method of producing the same Mamoru Osato 1981-06-09