TK

Takehiko Kato

DE Denso: 9 patents #1,418 of 11,792Top 15%
NS Nippon Soken: 8 patents #157 of 1,540Top 15%
KS Kobe Steel: 4 patents #205 of 2,031Top 15%
MC Murata Manufacturing Co.: 2 patents #2,631 of 5,295Top 50%
NE Nec: 2 patents #5,510 of 14,502Top 40%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
Overall (All Time): #178,370 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12283934 Switching circuit and front end circuit Risa Takeda 2025-04-22
11804863 Radio-frequency signal transmission/reception circuit and radio-frequency signal transmission/reception device 2023-10-31
11725574 Operation mechanism of turbocharger Kuniaki IIZUKA, Asako Yasui, Hayata SAKAIDA, Toshihiro Sugitani, Yuichiro Akiyama 2023-08-15
11519290 Spring washer for a variable flow rate valve mechanism Jinhee Byon 2022-12-06
11293450 Centrifugal compressor Jinhee Byon 2022-04-05
9803635 High pressure pump Shinichiro Koshimoto, Osamu Hishinuma, Yutaka Miyamoto 2017-10-31
9771928 High pressure pump Shinichiro Koshimoto, Osamu Hishinuma, Yutaka Miyamoto 2017-09-26
9534589 High-pressure pump Shinobu Oikawa, Hirokuni Tomita 2017-01-03
9404481 High-pressure pump Shinobu Oikawa, Hirokuni Tomita 2016-08-02
7191961 Injection hole plate and fuel injection apparatus having the same Atsuya Okamoto, Takeshi Mizobuchi 2007-03-20
7066408 Fuel injection valve Tomojiro Sugimoto, Keiso Takeda, Shigeo Furuno, Kimitaka Saito, Yasuhide Tani +2 more 2006-06-27
6844662 Spark plug and ignition apparatus Hitoshi Morita, Shinichi Okabe, Hiroshi Yorita, Keiji Kanao, Tetsuya Miwa 2005-01-18
6653767 Spark plug and ignition apparatus Hitoshi Morita, Shinichi Okabe, Hiroshi Yorita, Keiji Kanao, Tetsuya Miwa 2003-11-25
6570194 Compound semiconductor field effect transistor with improved ohmic contact layer structure and method of forming the same Naotaka Iwata 2003-05-27
6534790 Compound semiconductor field effect transistor Kazuki Ota, Hironobu Miyamoto, Naotaka Iwata, Masaaki Kuzuhara 2003-03-18
6397827 Spark ignition device for direct injection-type engines Tohru Yoshinaga, Hiroshi Yorita, Shinichi Okabe, Tatsushi Nakashima, Tetsuya Miwa 2002-06-04
6265814 Spark plug having a bypass electrode extending along a bypass path between center and ground electrode Tohru Yoshinaga, Tokio Kohama, Hiroshi Yorita, Masaki Takeyama, Masatoshi Ikeda 2001-07-24
5452858 Fuel injector for internal combustion engine having throttle portion Yoshihiro Tsuzuki, Toshihiko Igashira, Yasuyuki Sakakibara, Kazuhide Watanabe, Terutoshi Tomoda 1995-09-26
5338380 High strength low carbon steel wire rods and method of producing them Toshiaki Yutori, Masaaki Katsumata, Yasuhiro Hosogi 1994-08-16
5141570 High strength low carbon steel wire rods Toshiaki Yutori, Yasuhiro Hosogi 1992-08-25
5073338 High strength steel bolts Sadayoshi Furusawa, Toyofumi Hasegawa, Takeshi Nakahara 1991-12-17
4578124 High strength low carbon steels, steel articles thereof and method for manufacturing the steels Toshiaki Yutori, Masatoshi Sudo, Yasuhiro Hosogi 1986-03-25
4563222 High strength bolt and method of producing same Heiji Sugita 1986-01-07