HO

Hiroshi Ogawa

Fujitsu Limited: 72 patents #107 of 24,456Top 1%
SO Sony: 53 patents #412 of 25,231Top 2%
DE Denso: 25 patents #264 of 11,792Top 3%
Mitsubishi Electric: 23 patents #784 of 25,717Top 4%
NS Nippon Soken: 20 patents #47 of 1,540Top 4%
Canon: 19 patents #3,464 of 19,416Top 20%
MC Mitsubishi Gas Chemical Company: 14 patents #101 of 1,727Top 6%
SM Smc: 14 patents #75 of 737Top 15%
Kyocera: 12 patents #164 of 3,732Top 5%
TC Toyoda Gosei Co.: 12 patents #183 of 2,296Top 8%
OC Omron Healthcare Co.: 11 patents #61 of 475Top 15%
SU Subaru: 11 patents #59 of 1,436Top 5%
NT NTT: 10 patents #481 of 4,871Top 10%
BL Bridgestone Tire Company Limited: 10 patents #9 of 438Top 3%
CI Cheil Industries: 9 patents #91 of 975Top 10%
UN Unknown: 7 patents #1,646 of 83,584Top 2%
DC Dainippon Ink And Chemicals: 6 patents #60 of 1,002Top 6%
Pioneer Electronic: 6 patents #303 of 1,840Top 20%
MM Mitsubishi Mining: 5 patents #132 of 2,247Top 6%
OM Omron: 5 patents #619 of 3,089Top 25%
TO Tosoh: 5 patents #117 of 1,042Top 15%
KR Kawamura Institute Of Chemical Research: 5 patents #6 of 58Top 15%
MC Mizusawa Industrial Chemicals: 5 patents #10 of 90Top 15%
OE Omron Tateisi Electronics: 5 patents #51 of 599Top 9%
CC Citizen Watch Co.: 4 patents #269 of 1,225Top 25%
NE Nec: 4 patents #3,388 of 14,502Top 25%
Bridgestone: 4 patents #601 of 2,860Top 25%
Honda Motor Co.: 4 patents #5,328 of 21,052Top 30%
OC Otsuka Chemical Co.: 4 patents #39 of 269Top 15%
FI Fujikin Incorporated: 4 patents #95 of 318Top 30%
ME Meidensha: 4 patents #72 of 555Top 15%
Nissan Motor Co.: 3 patents #2,303 of 8,689Top 30%
DL Daiichi Radioisotope Laboratories: 3 patents #1 of 42Top 3%
SC Sekisui Chemical Co.: 3 patents #246 of 908Top 30%
PV Pioneer Video: 3 patents #25 of 139Top 20%
Samsung: 3 patents #30,683 of 75,807Top 45%
FM Flying Mole: 3 patents #3 of 3Top 100%
VJ Victor Company Of Japan: 3 patents #389 of 1,489Top 30%
JD Japan Display: 3 patents #648 of 1,204Top 55%
Philips: 3 patents #1,693 of 7,731Top 25%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
SC Sumitomo Chemical: 3 patents #1,386 of 4,033Top 35%
NI Nidec: 3 patents #315 of 976Top 35%
NC Nippondenso Co.: 3 patents #799 of 3,479Top 25%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
DI Daicel Chemical Industries: 2 patents #308 of 893Top 35%
FU Fujifilm: 2 patents #2,431 of 4,519Top 55%
FI Fujikin International: 2 patents #2 of 10Top 20%
AK Asahi Kasei Kabushiki Kaisha: 2 patents #302 of 1,220Top 25%
MK Mitsubishi Jukogyo K.K.: 2 patents #3 of 59Top 6%
NC Nippon Electric Co.: 2 patents #117 of 792Top 15%
OK Otsuka Kagaku Kabushiki Kaisya: 2 patents #52 of 183Top 30%
PP Pioneer Display Products: 2 patents #16 of 71Top 25%
SO Soken: 2 patents #35 of 182Top 20%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
SC Showa Sangyo Co.: 1 patents #18 of 47Top 40%
MC Mk Seiko Co.: 1 patents #7 of 20Top 35%
CK Calsonic Kansei: 1 patents #307 of 675Top 50%
MI Mitsui Petrochemical Industries: 1 patents #503 of 1,024Top 50%
MS Mitsubishi Heavy Industries Automotive Thermal Systems: 1 patents #27 of 64Top 45%
TC Taiyo Yuden Co.: 1 patents #643 of 959Top 70%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
TK Tokyo Keiki: 1 patents #60 of 166Top 40%
TC Toppan Printing Co.: 1 patents #691 of 1,467Top 50%
TI Toray Industries: 1 patents #2,000 of 3,690Top 55%
Mazda Motor: 1 patents #2,563 of 4,755Top 55%
MW Magnolia White: 1 patents #13 of 61Top 25%
JU Juki: 1 patents #119 of 281Top 45%
HD Hitachi Displays: 1 patents #519 of 752Top 70%
FC Furukawa Electric Co.: 1 patents #1,242 of 2,370Top 55%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
EA Earthclean: 1 patents #8 of 17Top 50%
SU Saga University: 1 patents #48 of 111Top 45%
Pioneer: 1 patents #1,107 of 1,730Top 65%
Overall (All Time): #533 of 4,157,543Top 1%
431
Patents All Time

Issued Patents All Time

Showing 426–431 of 431 patents

Patent #TitleCo-InventorsDate
4205622 Electrophotographic developing apparatus having developer and refreshing rollers for liquid developers Hiroyuki Miyake, Hirotoshi Kishi, Kazumi Umezawa, Seiji Sagara, Hiroshi Hara 1980-06-03
4201809 Magnetic recording medium Yasuo Tamai 1980-05-06
4197347 High density magnetic recording media Yasuo Tamai, Matsuaki Nakamura 1980-04-08
4193483 Latch operated coil spring clutch Masao Ariga, Hiroyuki Hattori, Katsuichi Shimizu, Hirotoshi Kishi, Takahiko Amanuma +2 more 1980-03-18
4190593 Cortisol radioimmunoassay method and cortisol derivatives useful therefor Masaharu Kojima, Hisao Sone, Nobuhiko Nakazawa, Seiji Tachibana 1980-02-26
4186228 Magnetic recording medium Matsuaki Nakamura, Yasuo Tamai 1980-01-29