KK

Kenji Kawakami

SO Sony: 11 patents #4,043 of 25,231Top 20%
Mitsubishi Electric: 10 patents #2,886 of 25,717Top 15%
Ngk Spark Plug Co.: 3 patents #540 of 1,594Top 35%
TL Teijin Limited: 3 patents #422 of 1,631Top 30%
MC Murata Manufacturing Co.: 2 patents #2,631 of 5,295Top 50%
RE Renesas Electronics: 2 patents #1,855 of 4,529Top 45%
TC Teijin Seiki Co.: 2 patents #43 of 143Top 35%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
Yamaha: 1 patents #1,232 of 2,001Top 65%
RT Renesas Technology: 1 patents #1,991 of 3,337Top 60%
Overall (All Time): #103,531 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
9385900 Signal transmission system Kenichi Tajima, Akihito Hirai, Masanobu Hiramine 2016-07-05
8907704 Frequency synthesizer Yusuke Kitsukawa, Hideyuki Nakamizo 2014-12-09
8798220 Signal source synchronization circuit Hideyuki Nakamizo, Kenichi Tajima, Nobuhiko Ando 2014-08-05
8548416 Semiconductor chip and radio frequency circuit Takuya Suzuki, Ko Kanaya, Yoichi Kitamura 2013-10-01
8308887 Via hole forming method using electrophotographic printing method Kazuhiro Isebo, Norio Sakai, Nobuaki Ogawa 2012-11-13
8229387 Even harmonic mixer Takuya Suzuki, Ko Kanaya, Yoichi Kitamura 2012-07-24
8206997 Method of manufacturing a semiconductor integrated circuit device and a method of manufacturing a thin film probe sheet for using the same Akio Hasebe, Yasuhiro Motoyama, Yasunori Narizuka, Seigo Nakamura 2012-06-26
8062911 Method of manufacturing a semiconductor integrated circuit device and a method of manufacturing a thin film probe sheet for using the same Akio Hasebe, Yasuhiro Motoyama, Yasunori Narizuka, Seigo Nakamura 2011-11-22
8018290 Oscillator, transmitter-receiver and frequency synthesizer Hiroyuki Mizutani, Kazuhiro Nishida, Masaomi Tsuru, Morishige Hieda, Moriyasu Miyazaki 2011-09-13
8012287 Via hole forming method using electrophotographic printing method Kazuhiro Isebo, Norio Sakai, Nobuaki Ogawa 2011-09-06
7675376 Voltage-controlled oscillator Masaomi Tsuru, Kenichi Tajima, Moriyasu Miyazaki, Kazuhiro Miyamoto, Masafumi Nakane 2010-03-09
7675383 Switch circuit Masatake Hangai, Tamotsu Nishino, Shinnosuke Soda, Kenichi Miyaguchi, Masaomi Tsuru +3 more 2010-03-09
7327991 Pulse modulation circuit Masayoshi Ono 2008-02-05
7018857 Method of manufacturing a semiconductor device including defect inspection using a semiconductor testing probe Masatoshi Kanamaru, Takanori Aono, Tatsuya Nagata, Hideyuki Aoki 2006-03-28
6362777 Pulse-doppler radar apparatus Hiroshi Ikematsu 2002-03-26
5835317 Cleaning device for magnetic tape recording and/or reproducing apparatus Masao Ohyama 1998-11-10
5787126 Detector and receiving and transmitting apparatus Kenji Itoh, Mitsuhiro Shimozawa, Noriharu Suematsu, Akio Iida 1998-07-28
5717366 Ladder type piezoelectric filter including conductive rubber plates Eiji Ozeki 1998-02-10
5528893 Method for heat treating a synthetic yarn during false-twist texturing and a method for rethreading a yarn Masaaki Yanagihara, Hiroyuki Nagai, Akira Miyamoto, Fumio Tanae, Shunzo Naito 1996-06-25
RE34927 Magnetic tape cassette with tape protective closure and lock mechanism Hiroshi Meguro, Yoshinori Yamamoto, Masao Ohyama, Kenichi Horikawa, Shigeru Mizusawa 1995-05-02
5404705 Apparatus for heat treating a synthetic yarn during false-twist texturing Masaaki Yanagihara, Hiroyuki Nagai, Akira Miyamoto, Fumio Tanae, Shunzo Naito 1995-04-11
5332982 Ladder-type electric filter device 1994-07-26
5218156 Apparatus for combining stored waveforms to synthesize musical tones Akira Iizuka 1993-06-08
5141811 Elastic synthetic polymer filament with multi-lobated cross-sectional profile Hiroyuki Nagai, Masakazu Fujita 1992-08-25
5057802 Ladder-type electric filter apparatus and housing therefor Eiji Ozeki 1991-10-15