AT

Akira Takahashi

Sharp Kabushiki Kaisha: 168 patents #12 of 10,731Top 1%
Honda Motor Co.: 38 patents #136 of 21,052Top 1%
SU Subaru: 33 patents #7 of 1,436Top 1%
Ricoh Company: 30 patents #620 of 9,818Top 7%
NI Ngk Insulators: 26 patents #112 of 2,083Top 6%
HI Hitachi: 22 patents #1,535 of 28,497Top 6%
PA Panasonic: 21 patents #931 of 21,108Top 5%
MM Mitsubishi Motors: 17 patents #37 of 1,823Top 3%
HK Hamamatsu Photonics K.K.: 15 patents #127 of 1,436Top 9%
Pioneer Electronic: 15 patents #65 of 1,840Top 4%
AC Alps Green Devices Co.: 15 patents #1 of 37Top 3%
Sumitomo Electric Industries: 14 patents #1,767 of 21,551Top 9%
NS Nippon Steel: 13 patents #128 of 4,423Top 3%
Mitsubishi Electric: 12 patents #2,296 of 25,717Top 9%
CC Clarion Co.: 11 patents #44 of 721Top 7%
OC Oki Electric Industry Co.: 11 patents #110 of 2,807Top 4%
CC Citizen Systems Japan Co.: 9 patents #2 of 40Top 5%
AC Alps Electric Co.: 8 patents #222 of 2,177Top 15%
CC Citizen Watch Co.: 7 patents #133 of 1,225Top 15%
HS Hitachi Automotive Systems: 7 patents #226 of 1,636Top 15%
KS Kabushiki Kaisha Osaka Packing Seizosho: 6 patents #1 of 10Top 10%
FU Fuji: 6 patents #83 of 422Top 20%
HE Hitachi Kokusai Electric: 6 patents #150 of 843Top 20%
SO Sony: 6 patents #6,793 of 25,231Top 30%
IH Ihi: 6 patents #122 of 1,178Top 15%
Nsk: 5 patents #309 of 1,559Top 20%
ST Sandisk Technologies: 5 patents #524 of 2,224Top 25%
IC Iwatsu Electric Co.: 4 patents #16 of 212Top 8%
HM Hyundai Motor: 4 patents #2,665 of 11,886Top 25%
KM Kia Motors: 4 patents #1,382 of 7,429Top 20%
JC Jeco Co.: 4 patents #8 of 73Top 15%
NI Nikon: 4 patents #874 of 2,493Top 40%
Fujitsu Limited: 4 patents #7,093 of 24,456Top 30%
University of Michigan: 4 patents #497 of 4,352Top 15%
UN Unknown: 4 patents #4,220 of 83,584Top 6%
DE Denso: 4 patents #3,129 of 11,792Top 30%
FI Fujifilm Business Innovation: 3 patents #2,355 of 5,238Top 45%
NC Nippon Paint Holdings Co.: 3 patents #198 of 834Top 25%
TL Tokyo Electron Limited: 3 patents #2,069 of 5,567Top 40%
TI Texas Instruments: 3 patents #4,047 of 12,488Top 35%
Tdk: 3 patents #1,522 of 3,796Top 45%
JN Jnc: 3 patents #107 of 413Top 30%
JP Jnc Petrochemical: 3 patents #57 of 122Top 50%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
CC Citizen Holdings Co.: 3 patents #70 of 431Top 20%
NA Nabtesco: 3 patents #60 of 320Top 20%
Pioneer: 3 patents #574 of 1,730Top 35%
ME Mitsubishi Jidosha Engineering: 3 patents #16 of 277Top 6%
Kawasaki: 2 patents #1,008 of 2,943Top 35%
AC Alps Alpine Co.: 2 patents #150 of 525Top 30%
FL Fujitsu Isotec Limited: 2 patents #14 of 54Top 30%
HP Hamamatsu Photonics: 2 patents #41 of 131Top 35%
HK Hitachi Kiden Kogyo: 2 patents #3 of 28Top 15%
IC Ishikawajima-Harima Heavy Industries Co.: 2 patents #134 of 611Top 25%
MC Maruzen Petrochemical Co.: 2 patents #56 of 174Top 35%
MC Mitsui Mining & Smelting Co.: 2 patents #281 of 838Top 35%
MK Mizusawa Kagaku Kogyo Kabushiki Kaisha: 2 patents #6 of 29Top 25%
NC Nippon Piston Ring Co.: 2 patents #59 of 208Top 30%
OC Oki Semiconductor Co.: 2 patents #109 of 526Top 25%
OP Optrex: 2 patents #12 of 56Top 25%
RC Ricoh Optical Industries Co.: 2 patents #3 of 28Top 15%
TK Toshiba Tec Kabushiki Kaisha: 2 patents #886 of 1,664Top 55%
TK Toyo Boseki Kabushiki Kaisha: 2 patents #343 of 1,085Top 35%
US Usinor: 2 patents #21 of 185Top 15%
NS Nippon Soken: 1 patents #783 of 1,540Top 55%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
NM Nippon Steel & Sumitomo Metal: 1 patents #786 of 1,491Top 55%
NT NTT: 1 patents #2,911 of 4,871Top 60%
MK Mitsubishi Jidosha Kogyo K.K.: 1 patents #5 of 82Top 7%
MK Mitsubishi Jidosha Kabushiki Kaisha: 1 patents #1 of 23Top 5%
WU Waseda University: 1 patents #116 of 411Top 30%
YA Yagi Antenna: 1 patents #18 of 49Top 40%
ML Mitsubishi Electric Engineering Company, Limited: 1 patents #138 of 352Top 40%
MK Mitsubishi Denki K.K.: 1 patents #164 of 577Top 30%
MI Mikuni: 1 patents #91 of 198Top 50%
FC Feather Safety Razor Co.: 1 patents #7 of 16Top 45%
MC Matsushit Electric Industrial Co.: 1 patents #13 of 293Top 5%
SH Shap: 1 patents #2 of 6Top 35%
KO Konica: 1 patents #1,290 of 1,958Top 70%
SC Shin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
SC Shinko Electric Industries Co.: 1 patents #437 of 723Top 65%
AC Aisan Industry Co.: 1 patents #46 of 109Top 45%
JT Japan Tobacco: 1 patents #582 of 1,187Top 50%
HS Hitachi Video And Information Systems: 1 patents #142 of 269Top 55%
TC The Society Of Japanese Aerospace Companies: 1 patents #17 of 40Top 45%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
TC Tokyo Roki Co.: 1 patents #32 of 106Top 35%
Dai Nippon Printing Co.: 1 patents #1,392 of 2,222Top 65%
Aisin Seiki Kabushiki Kaisha: 1 patents #2,094 of 3,782Top 60%
UT University Of Tokushima: 1 patents #12 of 80Top 15%
FC Fuji Electric Co.: 1 patents #1,354 of 2,643Top 55%
MC Murata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
NE Nec: 1 patents #7,889 of 14,502Top 55%
MC Mitsumi Electric Co.: 1 patents #527 of 935Top 60%
MK Mitsui Kinzoku Kogyo: 1 patents #47 of 99Top 50%
NK Nippon Kayaku: 1 patents #556 of 1,103Top 55%
MA Mitsui Kinzoku Act: 1 patents #60 of 109Top 60%
AI Aisin: 1 patents #310 of 1,000Top 35%
📍 Nagano, JP: #2 of 38 inventorsTop 6%
Overall (All Time): #236 of 4,157,543Top 1%
620
Patents All Time

Issued Patents All Time

Showing 426–450 of 620 patents

Patent #TitleCo-InventorsDate
5537377 Information recording and reproducing apparatus Kazuki Takai 1996-07-16
5530685 Magneto-optical recording apparatus having paired devices for applying external magnetic fields Hiroyuki Katayama, Junichiro Nakayama, Michinobu Mieda, Junji Hirokane, Kenji Ohta 1996-06-25
5530528 Image forming apparatus having contact type, one-component developing unit Yoji Houki, Makoto Matsuoka, Takeo Kojima, Mitsuhito Furukawa, Hiroshi Kera 1996-06-25
5499229 Track scanning for reproducing address information by crosstalk Yoshiteru Murakami, Kenji Ohta 1996-03-12
5490131 Optical disk Kenji Ohta, Toshikazu Nagaura, Masayasu Futagawa, Shinji Yamagami, Yoshiteru Murakami +3 more 1996-02-06
5486395 Magneto-optical disk Yoshiteru Murakami, Naoyasu Iketani, Kenji Ohta 1996-01-23
5477528 Magneto-optical disk and the reproducing method thereof Yoshiteru Murakami, Junsaku Nakajima, Junichiro Nakayama, Kenji Ohta 1995-12-19
5477524 Optical memory medium with preformed pit arrangement Toshihisa Deguchi, Kenji Ohta 1995-12-19
5475658 Magneto-optical recording device for improving C/N ratio Yoshiteru Murakami, Kenji Ohta 1995-12-12
5470694 Optical memory element and manufacturing method thereof Kenji Ohta, Junji Hirokane, Tetsuya Inui, Shohichi Katoh, Toshihisa Deguchi 1995-11-28
5467236 Gapped flexure tongue for floating type magnetic head apparatus Takashi Hatanai 1995-11-14
5459711 Optical recording element and driving system Kenji Ohta, Tetsuya Inui, Hiroyuki Katayama, Junji Hirokane, Yukinori Nishitani +2 more 1995-10-17
5457006 Method of manufacturing photo-mask and photo-mask manufactured thereby Junji Hirokane, Hiroyuki Katayama, Tetsuya Inui, Kenji Ohta, Junichi Washo +3 more 1995-10-10
5452272 Magneto-optical recording and reproducing device having light interrupting forming main robe and side robe light beam portions Yoshiteru Murakami, Junsaku Nakajima, Kenji Ohta 1995-09-19
5438391 Clamshell-type image forming apparatus Takashi Maekawa 1995-08-01
5428585 Magneto-optical recording medium comprising first, second and third magnetic layers and method of recording on same Junji Hirokane, Hiroyuki Katayama, Junichiro Nakayama, Kenji Ohta 1995-06-27
5422865 Light modulation method for magneto-optical recording device Hiroyuki Katayama, Junji Hirokane, Junichiro Nakayama, Kenji Ohta 1995-06-06
5416492 Electromagnetic radiator using a leaky NRD waveguide Atsushi Kaise, Tsukasa Yoneyama, Yoshihiko Wagatsuma 1995-05-16
5414652 Magneto-optical memory element Michinobu Mieda, Hiroyuki Katayama, Kenji Ohta 1995-05-09
5400160 Display means for apparatus with transparent panel fixed to LCD panel via elastic packing with ridges in zig zag pattern Susumu Otsuki, Teruo Nanmoku 1995-03-21
5381705 Rear wheel steering apparatus for four-wheel steering vehicle 1995-01-17
5383176 Optical disk Tetsuya Inui, Kenji Ohta 1995-01-17
5373444 Apparatus and method for processing vehicle steering angle signal 1994-12-13
5353278 Magneto-optical disk and method of manufacturing the same Yoshiteru Murakami, Junichiro Nakayama, Hiroyuki Katayama, Kenji Ohta, Hirotaka Toki 1994-10-04
5335220 Optical recording element and driving system Kenji Ohta, Tetsuya Inui, Hiroyuki Katayama, Junji Hirokane, Yukinori Nishitani +2 more 1994-08-02