Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
MT

Minoru Tanaka

HIHitachi: 22 patents #1,535 of 28,497Top 6%
Mitsubishi Electric: 15 patents #1,633 of 25,717Top 7%
SESeiko Epson: 11 patents #1,668 of 7,774Top 25%
JSJfe Steel: 10 patents #175 of 1,401Top 15%
SOSony: 6 patents #6,793 of 25,231Top 30%
JSJsr: 5 patents #221 of 1,137Top 20%
KTKabushiki Kaisha Toshiba: 5 patents #5,683 of 21,451Top 30%
Nichia: 5 patents #398 of 1,531Top 30%
JCJms Co.: 5 patents #15 of 184Top 9%
TKTateho Kagaku Kogyo Kabushiki Kaisha: 4 patents #1 of 6Top 20%
SCShiroki Kogyo Co.: 4 patents #1 of 31Top 4%
FCFuji Photo Optical Co.: 4 patents #132 of 509Top 30%
TIToyota Industries: 4 patents #358 of 1,610Top 25%
TIToray Industries: 4 patents #687 of 3,690Top 20%
TCTachibana Eletech Co.: 4 patents #2 of 14Top 15%
Fujitsu Limited: 4 patents #7,093 of 24,456Top 30%
ASAsics: 3 patents #108 of 285Top 40%
AZAzbil: 3 patents #59 of 257Top 25%
FUFujifilm: 3 patents #1,989 of 4,519Top 45%
Sharp Kabushiki Kaisha: 3 patents #4,164 of 10,731Top 40%
SCStanley Electric Co.: 3 patents #245 of 1,072Top 25%
MCMitsubishi Chemical: 3 patents #1,511 of 3,022Top 50%
YCYamatake-Honeywell Co.: 2 patents #37 of 169Top 25%
Canon: 2 patents #12,681 of 19,416Top 70%
MKMitsubishikaseikogyo Kabushiki Kaisha: 2 patents #2 of 49Top 5%
TLToyota Central R&D Labs: 2 patents #528 of 1,657Top 35%
MIMitutoyo: 2 patents #351 of 721Top 50%
FUFujikura: 2 patents #518 of 1,407Top 40%
NCNippon Kokan Co.: 1 patents #290 of 735Top 40%
NCNippon Light Metal Company: 1 patents #203 of 499Top 45%
NSNippon Steel: 1 patents #2,111 of 4,423Top 50%
NMNisshin Flour Milling: 1 patents #178 of 320Top 60%
RIRailway Technical Research Institute: 1 patents #70 of 233Top 35%
RIRimtec: 1 patents #8 of 20Top 40%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
HMHitachi Medical: 1 patents #371 of 680Top 55%
TOToyota: 1 patents #15,335 of 26,838Top 60%
FUFujinon: 1 patents #170 of 339Top 55%
TATaisei: 1 patents #56 of 224Top 25%
TETeac: 1 patents #255 of 440Top 60%
TCTeijin Seiki Co.: 1 patents #75 of 143Top 55%
TCToagosei Co.: 1 patents #155 of 338Top 50%
TLTokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
ECElectric Power Development Co.: 1 patents #44 of 132Top 35%
TCToyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%
TCT&S Co.: 1 patents #9 of 21Top 45%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Yamaha Motor: 1 patents #1,283 of 2,310Top 60%
PAPanasonic: 1 patents #13,264 of 21,108Top 65%
JCJ.S.T. Mfg. Co.: 1 patents #144 of 255Top 60%
KCKonishiroku Photo Industry Co.: 1 patents #532 of 894Top 60%
KOKasei Optonix: 1 patents #58 of 142Top 45%
KCKumahira Safe Co.: 1 patents #5 of 15Top 35%
MKMino Ganryo Kagaku: 1 patents #5 of 5Top 100%
JRJapan Synthetic Rubber: 1 patents #256 of 558Top 50%
NENec: 1 patents #7,889 of 14,502Top 55%
IIIzumi Industries: 1 patents #5 of 10Top 50%
Overall (All Time): #4,709 of 4,157,543Top 1%
171 Patents All Time

Issued Patents All Time

Showing 101–125 of 171 patents

Patent #TitleCo-InventorsDate
5340222 Ink ribbon with wire lubricant in a wire impact printer Shigeki Mizuno, Masaki Shimomura 1994-08-23
5288698 Method of positioning lead frame on molding die to seal semiconductor element with resin Toshinobu Banjo, Kouji Shika 1994-02-22
5256247 Liquid etchant composition for thin film resistor element Takayoshi Watanabe, Takashi Inoue, Hitoshi Oka 1993-10-26
5252940 Soft magnetic material 1993-10-12
5237211 Bidirectional switch circuit with automatic return-current path selector Hiroshi Tanimoto 1993-08-17
5227862 Projection exposure apparatus and projection exposure method Yoshitada Oshida, Tetsuzo Tanimoto 1993-07-13
5208656 Multilayer wiring substrate and production thereof Haruhiko Matsuyama, Mitsuo Yoshimoto, Jun Tanaka, Fusaji Shoji, Hitoshi Yokono +3 more 1993-05-04
5164203 Plastic molding device for a semiconductor element Itaru Matsuo 1992-11-17
5156469 Impact dot printer Takashi Asada 1992-10-20
5123823 Molding device for sealing semiconductor element with resin Toshinobu Banjo, Kouji Shika 1992-06-23
5121449 Information detecting system of scanning type Masataka Shiba, Ryuichi Funatsu, Motoya Taniguchi, Akira Inagaki 1992-06-09
5087497 Electric circuit substrate Koji Suzuki 1992-02-11
5054941 Print head driving circuit for a wire dot printer Kiyofumi Koike 1991-10-08
5056031 Apparatus for detecting the collision of moving objects Masaru Nakano, Toshiaki Ikeda, Toshitaka Kuno 1991-10-08
5053172 Method of cleaning semiconductor molding apparatus Katuhiko Yamasaki, Kenichiro Sakamoto 1991-10-01
5036937 Exercise vehicle 1991-08-06
5026668 Apparatus and method for producing semiconductor device Shunji Yamauchi, Kenitiro Sakamoto, Yutaka Morita, Toru Kidera, Hiroki Mieda 1991-06-25
5024542 Magnetic actuator 1991-06-18
5022294 Cutting apparatus for a noncircular cross section Toshiro Higuchi, Hazime Izumi 1991-06-11
5016149 Illuminating method and illuminating apparatus for carrying out the same, and projection exposure method and projection exposure apparatus for carrying out the same Yoshitada Oshida, Yasuhiro Yoshitake, Tetsuzo Tanimoto 1991-05-14
4987673 Apparatus for packaging semiconductor devices Masahisa Kogura, Haruo Yoshida 1991-01-29
4983115 Molding apparatus for sealing semiconductor devices including a mold cleaning device Katuhiko Yamasaki, Kenichiro Sakamoto 1991-01-08
4958934 Method and apparatus for continuous melting of gelled substance Hirokazu Saito, Seiichi Yukawa, Takashi Sato, Kiyoyuki Ushirokozi, Nobutoshi Aoyagi +1 more 1990-09-25
4934920 Apparatus for producing semiconductor device Shunji Yamauchi, Kenitiro Sakamoto, Yutaka Morita, Toru Kidera, Hiroki Mieda 1990-06-19
4931726 Apparatus for testing semiconductor device Susumu Kasukabe, Masasi Ookubo, Yutaka Akiba, Hitoshi Yokono 1990-06-05