AK

Akio Koyama

TO Toyota: 16 patents #1,599 of 26,838Top 6%
NC Nihon Kogyo Co.: 2 patents #4 of 29Top 15%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
RT Renesas Technology: 1 patents #1,991 of 3,337Top 60%
RI Riken: 1 patents #679 of 1,824Top 40%
SC Shin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
Tdk: 1 patents #2,493 of 3,796Top 70%
TO Toshiba: 1 patents #1,121 of 2,688Top 45%
JE Japan Energy: 1 patents #85 of 240Top 40%
Overall (All Time): #155,369 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
8999878 Exhaust gas purifying catalyst Shinichi Takeshima 2015-04-07
8574524 Porous composite oxide and production method thereof Shinichi Takeshima, Kohei Yoshida 2013-11-05
8382905 Plant-fiber-material transformation method Shinichi Takeshima 2013-02-26
8298983 Production process of composite metal oxide Shinichi Takeshima 2012-10-30
8288310 Automobile exhaust gas purification catalyst and method of production of same Shinichi Takeshima 2012-10-16
8206671 Porous composite oxide and production method thereof Shinichi Takeshima, Kohei Yoshida 2012-06-26
8093931 Semiconductor integrated circuit device Toshio Shinomiya, Yuji Yokoyama 2012-01-10
8034743 Method for production of an exhaust gas purification catalyst support and exhaust gas purification catalyst support Shinichi Takeshima 2011-10-11
7968490 Method for producing porous substances Shinichi Takeshima 2011-06-28
7915195 Exhaust gas purifying catalyst and production process thereof Shinichi Takeshima 2011-03-29
7910084 Compound oxide manufacturing method Shinichi Takeshima 2011-03-22
7790649 Production process of exhaust gas purifying catalyst Shinichi Takeshima 2010-09-07
7776783 Catalyst carrier and exhaust gas purification catalyst Shinichi Takeshima 2010-08-17
7758840 Method for producing compound Shinichi Takeshima 2010-07-20
7678733 Method for producing heat-resisting compound oxides Shinichi Takeshima 2010-03-16
7608559 Method for producing heat-resisting compound oxides Shinichi Takeshima 2009-10-27
7604789 Porous composite oxide and production method thereof Shinichi Takeshima, Kohei Yoshida 2009-10-20
7154133 Semiconductor device and method of manufacture 2006-12-26
7034568 Logic circuit Hiroki Yamashita, Tatsuhiro Aida, Atsushi Itoh, Masahito Sonehara 2006-04-25
6878200 Mortar or concrete composition Masafumi Kikuchi, Usaburo Yano, Masahiko Minemura, Akira Yamamoto 2005-04-12
6310343 Electron impact elastic recoil hydrogen atom analyzer Tsuyoshi Horiki, Akira Yoneda 2001-10-30
6299680 CdTe crystal or CdZnTe crystal and method for preparing the same Ryuichi Hirano 2001-10-09
4939106 Sintered ceramic body Toshinobu Miyakoshi, Atsushi Yamada, Hideaki Ninomiya 1990-07-03
4615964 Vapor-deposited film of selenium as photoreceptor for electrophotography and process for producing the same Osamu Oda, Arata Onozuka 1986-10-07
4585621 Vapor-deposited film of selenium or selenium alloy for electrophotography Osamu Oda, Arata Onozuka 1986-04-29