TY

Takashi Yamakawa

Mitsubishi Electric: 43 patents #197 of 25,717Top 1%
Yamaha: 10 patents #242 of 2,001Top 15%
SC Sanyo Electric Co.: 5 patents #1,180 of 6,347Top 20%
IC Ibiden Co.: 2 patents #335 of 730Top 50%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
NT NTT: 1 patents #2,911 of 4,871Top 60%
KU Kurimoto: 1 patents #46 of 113Top 45%
EB Ebara: 1 patents #1,014 of 1,611Top 65%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #33,613 of 4,157,543Top 1%
65
Patents All Time

Issued Patents All Time

Showing 51–65 of 65 patents

Patent #TitleCo-InventorsDate
9240736 Power converting device, motor driving device, and refrigerating and air-conditioning apparatus Takuya Shimomugi, Koichi Arisawa, Yosuke Shinomoto 2016-01-19
9225258 Backflow preventing means, power converting device, and refrigerating and air-conditioning apparatus Takuya Shimomugi, Koichi Arisawa, Yosuke Shinomoto 2015-12-29
8861742 Masker sound generation apparatus and program Mai Koike, Yasushi Shimizu, Masato Hata 2014-10-14
8856136 Information update system 2014-10-07
8363845 Speaker array apparatus and signal processing method therefor Kenichi Tamiya, Koji Kushida, Ken Iwayama 2013-01-29
8331590 Delay time calculation apparatus and method Koji Kushida 2012-12-11
8275160 Delay time calculation apparatus, delay time calculation method, and storage medium storing program therefor Koji Kushida 2012-09-25
8261540 Particulate matter sensor and exhaust gas purification apparatus Athanasios G. Konstandopoulos, Fumishige Miyata, Senji Hamanaka, Makoto Konno 2012-09-11
7974424 Speaker array system Koji Kushida 2011-07-05
6651458 Internal intermediate pressure 2-stage compression type rotary compressor Toshiyuki Ebara, Masaya Tadano, Atsushi Oda 2003-11-25
6616428 Double-cylinder two-stage compression rotary compressor Toshiyuki Ebara, Masaya Tadano, Atsushi Oda 2003-09-09
6581408 Multi-stage compression refrigerating device Masaya Tadano, Atsushi Oda, Toshiyuki Ebara 2003-06-24
6568198 Multi-stage compression refrigerating device Masaya Tadano, Atsushi Oda, Toshiyuki Ebara 2003-05-27
6318981 Two-cylinder type two-stage compression rotary compressor Toshiyuki Ebara, Satoshi Imai, Masaya Tadano, Atsushi Oda 2001-11-20
4583568 Valve assembly for powdery granules Ikuhei Otani, Morio Akiyama 1986-04-22