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

Hiroshi Yamazaki — 401 Patents

KOKonica: 46 patents #4 of 1,958Top 1%
Tdk: 27 patents #163 of 3,796Top 5%
KMKonica Minolta: 26 patents #9 of 1,361Top 1%
Sony: 21 patents #1,931 of 25,231Top 8%
KSKyocera Document Solutions: 18 patents #115 of 1,545Top 8%
NTNTT: 18 patents #151 of 4,871Top 4%
HCHitachi Chemical Company: 16 patents #69 of 1,946Top 4%
NDNitto Denko: 16 patents #187 of 2,479Top 8%
SCSeikosha Co.: 15 patents #15 of 312Top 5%
Mitsubishi Electric: 14 patents #1,823 of 25,717Top 8%
KMKonica Minolta: 12 patents #175 of 2,718Top 7%
OCOhi Seisakusho Co.: 12 patents #7 of 196Top 4%
Kabushiki Kaisha Toshiba: 12 patents #2,533 of 21,451Top 15%
Fujitsu Limited: 10 patents #3,161 of 24,456Top 15%
Ricoh Company: 10 patents #2,244 of 9,818Top 25%
Nissan Motor Co.: 9 patents #795 of 8,689Top 10%
ENEnplas: 9 patents #32 of 255Top 15%
CHChisso: 8 patents #104 of 833Top 15%
NHNamiki Seimitsu Houseki: 7 patents #3 of 108Top 3%
MCMabuchi Motor Co.: 5 patents #19 of 228Top 9%
NCNippon Shokubai Co.: 5 patents #248 of 1,108Top 25%
HSHarmonic Drive Systems: 5 patents #31 of 147Top 25%
FCFuji Kiko Co.: 5 patents #22 of 208Top 15%
Canon: 5 patents #9,253 of 19,416Top 50%
AKAsahi Kasei Kabushiki Kaisha: 5 patents #67 of 1,220Top 6%
KCKonishiroku Photo Industry Co.: 5 patents #175 of 894Top 20%
SPSeiko Precision: 4 patents #31 of 173Top 20%
KMKyocera Mita: 4 patents #152 of 763Top 20%
UNUnknown: 3 patents #7,366 of 83,584Top 9%
KIKabushiki Kaisha Isowa: 3 patents #10 of 54Top 20%
LPLenovo (Singapore) Pte.: 3 patents #409 of 1,301Top 35%
ACAdamant Namiki Precision Jewel Co.: 3 patents #5 of 58Top 9%
YKYasuhiro Koike: 3 patents #5 of 25Top 20%
NCNagano Japan Radio Co.: 2 patents #9 of 49Top 20%
O2O2Micro: 2 patents #65 of 174Top 40%
NCNissan Shatai Co.: 2 patents #11 of 67Top 20%
Nec: 2 patents #5,510 of 14,502Top 40%
NCNavitime Japan Co.: 2 patents #8 of 16Top 50%
CUCarleton University: 2 patents #1 of 34Top 3%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Sharp Kabushiki Kaisha: 2 patents #5,184 of 10,731Top 50%
DCDainippon Pharmaceutical Co.: 2 patents #58 of 207Top 30%
IRInstitute Of Physical And Chemical Research: 2 patents #33 of 172Top 20%
KZKabushiki Kaisha Zuken: 2 patents #2 of 29Top 7%
MSMitsubishi Heavy Industries Thermal Systems: 2 patents #71 of 149Top 50%
FUFukuoka University: 2 patents #5 of 64Top 8%
ICIkeda Bussan Co.: 2 patents #63 of 235Top 30%
HCHidan Co.: 2 patents #5 of 17Top 30%
SCSumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
AFAsahi Kasei Fibers: 1 patents #35 of 96Top 40%
CLCanadian Patents And Development Limited: 1 patents #88 of 449Top 20%
CPChisso Petrochemical: 1 patents #69 of 139Top 50%
DCDainippon Sumitomo Pharma Co.: 1 patents #107 of 256Top 45%
DKDenki Kagaku Kogyo: 1 patents #291 of 655Top 45%
FUFuji: 1 patents #263 of 422Top 65%
FCFuji Machine Mfg. Co.: 1 patents #140 of 245Top 60%
FUFujifilm: 1 patents #3,076 of 4,519Top 70%
FTFujitsu Display Technologies: 1 patents #84 of 137Top 65%
FLFujitsu Microelectronics Limited: 1 patents #212 of 624Top 35%
HRHagiwara Research: 1 patents #3 of 6Top 50%
JMJapan Electronic Materials: 1 patents #16 of 40Top 40%
JCJgc Catalysts And Chemicals: 1 patents #74 of 139Top 55%
JSJsp: 1 patents #80 of 134Top 60%
KCKoito Manufacturing Co.: 1 patents #610 of 1,047Top 60%
MCMaruzen Petrochemical Co.: 1 patents #83 of 174Top 50%
MMMitsubishi Mining: 1 patents #886 of 2,247Top 40%
NSNippon Sanso: 1 patents #107 of 243Top 45%
NENtt Electronics: 1 patents #160 of 358Top 45%
OCOki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
OMOmron: 1 patents #1,808 of 3,089Top 60%
Pioneer: 1 patents #1,107 of 1,730Top 65%
RKRikagaku Kenkyusho: 1 patents #70 of 207Top 35%
SESeiko Epson: 1 patents #5,551 of 7,774Top 75%
SKSeiko Koki Kabushiki Kaisha: 1 patents #23 of 27Top 90%
ATAT&T: 1 patents #10,626 of 18,772Top 60%
TKTanaka Kikinzoku Kogyo K.K.: 1 patents #216 of 436Top 50%
Stanford University: 1 patents #2,251 of 5,197Top 45%
YAYamatake: 1 patents #76 of 243Top 35%
Overall (All Time): #631 of 4,157,543Top 1%
401 Patents All Time

Issued Patents All Time

Showing 51–75 of 401 patents

Patent #TitleCo-InventorsDate
9732753 Scroll compressor with inclined surfaces on the stepped portions Hirofumi Hirata, Takayuki Kuwahara 2017-08-15
9709388 Optical inner surface measuring device Eri FUKUSHIMA, Kazumi Yanagiura, Takafumi Asada 2017-07-18
9709749 Optical imaging probe Eri FUKUSHIMA, Takafumi Asada 2017-07-18
9706930 Optical imaging probe Eri FUKUSHIMA, Takafumi Asada 2017-07-18
9701498 Corrugated paperboard sheet feeding apparatus Junichi Kodama, Shunsuke Miyashita, Kyohei Asano 2017-07-11
9639189 Conductive pattern formation method, conductive pattern-bearing substrate, and touch panel sensor Yoshimi Igarashi 2017-05-02
9574870 Probe for optical imaging Eri FUKUSHIMA, Norikazu Sato, Tomoyuki Kugou, Takafumi Asada 2017-02-21
9560700 Illumination lamp and illumination device configured for rapid-start method Masaharu Urano 2017-01-31
9488912 Method of forming protective film for touch panel electrode, photosensitive resin composition and photosensitive element, and method of manufacturing touch panel Ikuo Mukai, Yasuharu Murakami, Naoki Sasahara 2016-11-08
9466994 Mobile terminal power receiving module utilizing wireless power transmission and mobile terminal rechargeable battery including mobile terminal power receiving module Kojiro Kameyama, Eiji Toyoda, Hajime Sunahara 2016-10-11
9389286 Magnetic sensor with reduced effect of interlayer coupling magnetic field Yoshiyuki Mizoguchi, Satoshi Abe, Homare Tokida, Toshiyuki Ayukawa 2016-07-12
9360629 Waveguide type optical switch Toshio Watanabe, Kenya Suzuki, Takashi Goh, Atsushi Mori 2016-06-07
9348223 Method for forming resin cured film pattern, photosensitive resin composition, photosensitive element, method for producing touch panel, and resin cured film Yasuharu Murakami, Yoshimi Igarashi, Naoki Sasahara, Ikuo Mukai 2016-05-24
9297635 Magnetic sensor system including two detection circuits Homare Tokida, Satoshi Abe, Takahiro Imai 2016-03-29
9274456 Developing device comprising a conveying member having a hollow spiral shape and image forming apparatus provided with the same Yoshihiro Yamagishi, Masaki Hayashi, Eiji Nimura, Koji Kuramashi 2016-03-01
9254117 Ultrasonic endoscopic probe Eri FUKUSHIMA, Takafumi Asada 2016-02-09
9244136 Magnetic sensor with reduced effect of interlayer coupling magnetic field Yoshiyuki Mizoguchi, Takahiro Imai, Satoshi Abe, Homare Tokida 2016-01-26
9223184 Optical modulator Takashi Saida, Takashi Goh 2015-12-29
9225907 Image capturing apparatus and method for controlling the same Daisuke Toguchi 2015-12-29
9188303 Automotive headlamp Noritaka Minakawa, Shoichiro Yokoi 2015-11-17
9176427 Developing device and image forming apparatus therewith Kenichi Tamaki 2015-11-03
9176429 Developing device and image forming apparatus provided with same Yoshihiro Yamagishi, Masaki Hayashi, Eiji Nimura, Koji Kuramashi 2015-11-03
9161442 Photosensitive conductive film, method for forming conductive film, method for forming conductive pattern, and conductive film substrate 2015-10-13
9158233 Conveyance device, development device including conveyance device, and image forming apparatus including development device Eiji Nimura, Kuniaki Nakano, Koji Kuramashi, Yoshihiro Yamagishi 2015-10-13
9152085 Developing device and image forming apparatus including the same Masaki Hayashi, Yoshihiro Yamagishi, Koji Kuramashi, Eiji Nimura 2015-10-06