KF

Kensaku Fujii

Fujitsu Limited: 10 patents #3,161 of 24,456Top 15%
ZE Zeon: 4 patents #174 of 734Top 25%
NT NTT: 1 patents #2,911 of 4,871Top 60%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
TO Toa: 1 patents #27 of 65Top 45%
Overall (All Time): #267,977 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
12139570 Retardation film and production method for retardation film Takeshi Asada, Hironari Sudeji, Yusuke YASU, Hiroya Nishioka 2024-11-12
11970562 Retardation film and production method for retardation film Takeshi Asada, Hironari Sudeji, Yusuke YASU, Hiroya Nishioka 2024-04-30
11192976 Copolymer, polymer, molding material and resin molded body Takashi Houkawa, Takuya KOMATSUBARA, Yasuhiro Shimizu 2021-12-07
10647811 Copolymer, polymer, molding material and resin molded body Takashi Houkawa, Takuya KOMATSUBARA, Yasuhiro Shimizu 2020-05-12
8584721 Tire with rotation period indication hole, and method of indicating tire rotation period Takehiko Murata 2013-11-19
8180068 Noise eliminating apparatus Satoshi Miyata 2012-05-15
6683960 Active noise control apparatus Juro Ohga 2004-01-27
6256581 Navigation method, device, system and computer readable medium Kazuhiro Sugiyama 2001-07-03
5940499 Voice switch used in hands-free communications system Juro Ohga, Hiroyuki Masuda 1999-08-17
5790440 Apparatus for estimating filter coefficients Juro Ohga 1998-08-04
5638311 Filter coefficient estimation apparatus Juro Ohga 1997-06-10
5602926 Method and apparatus of determining the sound transfer characteristic of an active noise control system Tadashi Ohashi, Juro Ohga 1997-02-11
5479502 Speaking apparatus having handfree conversation function Juro Ohga, Hiroyuki Masuda, Yoshihiro Sakai 1995-12-26
5384843 Hands-free telephone set Hiroyuki Masuda, Kazutoshi Hosokawa, Juro Ohga 1995-01-24
5237562 Echo path transition detection Juro Ohga, Hiroyuki Masuda, Yoshihiro Sakai 1993-08-17
5146470 Adaptive digital filter including low-pass filter Juro Ohga, Hiroyuki Masuda 1992-09-08
4908855 Electronic telephone terminal having noise suppression function Juro Ohga, Hiroyuki Masuda, Yuka Sato 1990-03-13