KT

Kenji Takahashi

Fujitsu Limited: 81 patents #75 of 24,456Top 1%
SO Sony: 80 patents #188 of 25,231Top 1%
Canon: 68 patents #349 of 19,416Top 2%
HI Hitachi: 36 patents #629 of 28,497Top 3%
TO Toyota: 34 patents #428 of 26,838Top 2%
PA Panasonic: 29 patents #544 of 21,108Top 3%
Sumitomo Electric Industries: 27 patents #600 of 21,551Top 3%
KT Kabushiki Kaisha Toshiba: 23 patents #1,224 of 21,451Top 6%
Mitsubishi Electric: 17 patents #1,334 of 25,717Top 6%
FU Fujikura: 15 patents #51 of 1,407Top 4%
YA Yazaki: 14 patents #291 of 3,427Top 9%
FU Fujifilm: 13 patents #684 of 4,519Top 20%
FA Fanuc: 12 patents #223 of 1,735Top 15%
NC Nkk Co.: 10 patents #32 of 1,173Top 3%
Sharp Kabushiki Kaisha: 9 patents #1,853 of 10,731Top 20%
TC Tok Bearing Co.: 9 patents #1 of 13Top 8%
MC Miyakoshi Printing Machinery Co.: 8 patents #9 of 68Top 15%
KC Koyo Seiko Co.: 8 patents #54 of 749Top 8%
IN Intel: 7 patents #5,403 of 30,777Top 20%
JS Jfe Steel: 7 patents #245 of 1,401Top 20%
HD Hitachi Denshi: 7 patents #12 of 275Top 5%
RT Renesas Technology: 7 patents #409 of 3,337Top 15%
SC Sumitomo Electric Printed Circuits: 6 patents #15 of 116Top 15%
NT NTT: 6 patents #897 of 4,871Top 20%
SC Sumitomo Chemical: 5 patents #946 of 4,033Top 25%
Rohm Co.: 5 patents #568 of 2,292Top 25%
NI Nifco: 4 patents #106 of 650Top 20%
HC Hitachi Cable: 4 patents #157 of 1,086Top 15%
Toshiba Memory: 4 patents #468 of 1,971Top 25%
TT Toshiba Lighting & Technology: 3 patents #153 of 486Top 35%
SC Sanyo Electric Co.: 3 patents #1,910 of 6,347Top 35%
NE Nec: 3 patents #4,195 of 14,502Top 30%
NU National University Corporation Kagawa University: 3 patents #29 of 277Top 15%
KS Kabushiki Kaisha Yokota Seisakusho: 3 patents #4 of 10Top 40%
DC Dainippon Ink And Chemicals: 3 patents #161 of 1,002Top 20%
AC Aisin Aw Co.: 3 patents #581 of 2,011Top 30%
NH Ntt Security Holdings: 3 patents #1 of 11Top 10%
AC Alps Electric Co.: 2 patents #822 of 2,177Top 40%
FL Fujitsu Microelectronics Limited: 2 patents #92 of 624Top 15%
JI Japan Atomic Energy Research Institute: 2 patents #81 of 609Top 15%
SC Sakura Finetechnical Co.: 2 patents #1 of 15Top 7%
SC Sakura Finetek Japan Co.: 2 patents #8 of 33Top 25%
SC Sakura Seiki Co.: 2 patents #11 of 51Top 25%
FC Furukawa Electric Co.: 2 patents #850 of 2,370Top 40%
KS Kabushiki Kaisha Tiyoda Seisakusho: 2 patents #3 of 21Top 15%
SC Sumitomo Cement Co.: 2 patents #14 of 113Top 15%
TE Teac: 2 patents #166 of 440Top 40%
The Procter & Gamble: 2 patents #4,607 of 10,133Top 50%
TO Toshiba: 2 patents #606 of 2,688Top 25%
AC Ajinomoto Co.: 2 patents #796 of 2,190Top 40%
TC Toyo Soda Manufacturing Co.: 2 patents #85 of 272Top 35%
TK Toyoda Koki Kabushiki Kaisha: 2 patents #222 of 674Top 35%
KE Keihin: 2 patents #128 of 596Top 25%
NC Nippon Kokan Co.: 2 patents #138 of 735Top 20%
DC Daido Steel Co.: 2 patents #47 of 272Top 20%
MM Mitsubishi Motors: 2 patents #508 of 1,823Top 30%
AC Anam Industrial Co.: 2 patents #6 of 25Top 25%
NU National University Corporation Shizuoka University: 2 patents #26 of 225Top 15%
NR Ntt Research: 1 patents #7 of 39Top 20%
CK Calsonic Kansei: 1 patents #307 of 675Top 50%
DA Daicel: 1 patents #265 of 523Top 55%
DT Daido Tokushuko: 1 patents #152 of 382Top 40%
DC Diesel Kiki Co.: 1 patents #181 of 366Top 50%
EM Elpida Memory: 1 patents #419 of 692Top 65%
SU Subaru: 1 patents #677 of 1,436Top 50%
FC Fuji Photo Co.: 1 patents #1 of 51Top 2%
FS Furukawa Automotive Systems: 1 patents #140 of 269Top 55%
HL Henkel Limited: 1 patents #428 of 861Top 50%
HA Hitachi Astemo: 1 patents #649 of 1,276Top 55%
HC Hitachi Consumer Electronics Co.: 1 patents #206 of 447Top 50%
HS Hitachi-Lg Data Storage: 1 patents #177 of 294Top 65%
HS Hitachi Microcomputer System: 1 patents #104 of 257Top 45%
HI Hitachi Video Engineering, Incorporated: 1 patents #69 of 181Top 40%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
HD Hoshizaki Denki: 1 patents #121 of 203Top 60%
IT Idx Technologies: 1 patents #3 of 13Top 25%
JT Jtekt: 1 patents #1,102 of 1,969Top 60%
KS Komatsu Shisakusho: 1 patents #409 of 885Top 50%
KT Kanazawa Institute Of Technology: 1 patents #24 of 80Top 30%
KO Kasei Optonix: 1 patents #58 of 142Top 45%
Kioxia: 1 patents #1,054 of 1,813Top 60%
KI Kyoto Pharmaceutical Industries: 1 patents #24 of 57Top 45%
MI Minolta: 1 patents #729 of 1,109Top 70%
MK Minolta Camera Kk: 1 patents #8 of 27Top 30%
MC Mita Industrial Co.: 1 patents #653 of 891Top 75%
MC Mitsui Engineering & Shipbuilding Co.: 1 patents #166 of 496Top 35%
MI Mitsui Petrochemical Industries: 1 patents #503 of 1,024Top 50%
NC National Research Council Of Canada: 1 patents #547 of 1,315Top 45%
NK Nitto Kogyo: 1 patents #22 of 53Top 45%
OC Olympus Optical Co.: 1 patents #1,517 of 2,334Top 65%
PK Pentel Kabushiki Kaisha: 1 patents #76 of 170Top 45%
SK Seikagaku Kogyo: 1 patents #45 of 102Top 45%
SC Shinko Electric Industries Co.: 1 patents #437 of 723Top 65%
SH Showa: 1 patents #167 of 337Top 50%
SU Subaru: 1 patents #819 of 1,684Top 50%
SI Sumitomo Heavy Industries: 1 patents #424 of 917Top 50%
TC Thk Co.: 1 patents #245 of 450Top 55%
TC Toppan Moore Co.: 1 patents #16 of 38Top 45%
TC Toyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%
TC Tyco Electronics Co.: 1 patents #700 of 1,364Top 55%
TG Tyco Electronics Japan G.K.: 1 patents #122 of 248Top 50%
📍 Osaka, CA: #2 of 107 inventorsTop 2%
Overall (All Time): #253 of 4,157,543Top 1%
603
Patents All Time

Issued Patents All Time

Showing 1–25 of 603 patents

Patent #TitleCo-InventorsDate
12432851 Printed wiring board Shoichiro Sakai, Kou NOGUCHI 2025-09-30
12388384 Synchronous motor control device Tomohisa Tsutsumi 2025-08-12
12333166 Memory system that controls timing of refresh operation Makoto Kuribara, Shin TAKASAKA, Rintaro ARAI 2025-06-17
12323081 Drive device, fluid utilization device, and air conditioner Yuki TANIYAMA, Yuichi Shimizu, Yasuhiko Wada 2025-06-03
12304973 Polysaccharide derivative production method and lignin derivative production method Daisuke Hirose, Samuel Budi Wardhana Kusuma, Chie Maruyama, Naoki Wada 2025-05-20
12275805 Method for producing polysaccharide ester Daisuke Hirose, Masashi Genda, Naoki Wada, Kentaro TAKI, Hiroyuki Matsumura 2025-04-15
12249928 Power converter, motor driver, and refrigeration cycle applied equipment Keisuke Uemura, Tomohiro KUTSUKI, Haruka MATSUO, Koichi Arisawa, Takaaki TAKAHARA +1 more 2025-03-11
12126287 Magnetic pole position detection device Tomohisa Tsutsumi 2024-10-22
12113185 Diagnostic device for secondary battery and recovery method for secondary battery Ryo Kanada, Mai Fujiwara 2024-10-08
11938503 Ultrafine bubble-containing liquid manufacturing apparatus and manufacturing method Masahiko Kubota, Ikuo Nakazawa, Akitoshi Yamada, Nobuhisa Tanahashi 2024-03-26
11912028 Substrate for liquid ejection head and liquid ejection head Mai Hirohara 2024-02-27
11883120 Medical observation system, medical signal processing device, and medical signal processing device driving method Yasuaki Takahashi, Hisakazu Shiraki, Masahito Yamane, Masaya Takemoto 2024-01-30
11871514 Flexible printed circuit board and method for producing the same Shoichiro Sakai 2024-01-09
11833817 Liquid ejection head substrate and liquid ejection head Seiko Minami, Mai Hirohara 2023-12-05
11811030 Diagnostic device for secondary battery and recovery method for secondary battery Ryo Kanada, Mai Fujiwara 2023-11-07
11766685 Ultrafine bubble generating method, ultrafine bubble-containing liquid manufacturing apparatus and manufacturing method, and ultrafine bubble-containing liquid Masahiko Kubota, Ikuo Nakazawa, Akitoshi Yamada, Nobuhisa Tanahashi, Yoshio Kinoshita 2023-09-26
11760090 Liquid ejection head circuit board and liquid ejection head Mai Hirohara, Seiko Minami 2023-09-19
11757141 Diagnostic device for secondary battery and recovery method for secondary battery Ryo Kanada, Mai Fujiwara 2023-09-12
11711040 Motor driving apparatus and refrigeration cycle equipment Shinya TOYODOME, Kazunori Hatakeyama 2023-07-25
11711039 Motor drive apparatus Shinya TOYODOME, Mitsuo Kashima, Tomohiro KUTSUKI 2023-07-25
11705847 Drive device for AC motor, compressor drive device, and refrigeration cycle device Yuki TANIYAMA, Hiroyuki Kamiko, Toshiyuki Kaitani 2023-07-18
11705841 Estimation device and AC motor drive device Shinya TOYODOME, Mitsuo Kashima, Tomohiro KUTSUKI 2023-07-18
11691579 Vehicle shock absorbing structure 2023-07-04
11682992 Motor drive device, compressor drive system, and refrigeration cycle system Shinya TOYODOME, Mitsuo Kashima, Tomohiro KUTSUKI 2023-06-20
11682761 Nickel hydroxide, positive electrode material, alkaline battery, and method of producing nickel hydroxide Christina Bock, Nafiseh Ebrahimi, Olga Naboka 2023-06-20