YI

Yasushi Igarashi

OC Oki Electric Industry Co.: 14 patents #69 of 2,807Top 3%
T& Tsumura &: 4 patents #8 of 128Top 7%
OC Oki Semiconductor Co.: 2 patents #109 of 526Top 25%
📍 Ibaraki, JP: #397 of 6,779 inventorsTop 6%
Overall (All Time): #224,975 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
8188555 Capacitive sensor and manufacturing method therefor 2012-05-29
7666700 Method for fabrication MEMS-resonator 2010-02-23
7256088 Semiconductor device and manufacturing method thereof 2007-08-14
7120044 Method and circuit for reading data from a ferroelectric memory cell 2006-10-10
6936478 Ferroelectric capacitor with dielectric lining, semiconductor memory device employing same, and fabrication methods thereof Kouichi Tani 2005-08-30
6911363 Semiconductor device and manufacturing method thereof 2005-06-28
6834006 Method and circuit for reading data from a ferroelectric memory cell 2004-12-21
6828189 Semiconductor device and method of fabricating the same 2004-12-07
6710384 Semiconductor memory device 2004-03-23
6623985 Structure of and manufacturing method for semiconductor device employing ferroelectric substance 2003-09-23
6600185 Ferroelectric capacitor with dielectric lining, semiconductor memory device employing same, and fabrication methods thereof Kouichi Tani 2003-07-29
6573587 Metal oxide capacitor with hydrogen diffusion blocking covering 2003-06-03
6426906 Read-out circuit 2002-07-30
6337592 Non-volatile semiconductor switch circuit 2002-01-08
6291250 Method for manufacturing semiconductor memory device 2001-09-18
6107656 Ferroelectric transistors, semiconductor storage devices, method of operating ferroelectric transistors and method of manufacturing ferromagnetic transistors 2000-08-22
5675023 Chromone derivative, and aldose reductase inhibitor comprising said compound as active component Takuji Yamaguchi, Yoshimitsu Ogawa, Mika Tomita, Hiroko Hayashi, Toshitsugu Sato +1 more 1997-10-07
5627204 Chromone derivative, and aldose reductase inhibitor comprising said compound as active component Takuji Yamaguchi, Yoshimitsu Ogawa, Mika Tomita, Hiroko Hayashi, Toshitsugu Sato +1 more 1997-05-06
5521216 Chromone derivative, and aldose reductase inhibitor comprising said compound as active ingredient Takuji Yamaguchi, Kunio Hosaka 1996-05-28
5455267 Chromone derivative, and aldose reductase inhibitor comprising said compound as active component Takuji Yamaguchi, Yoshimitsu Ogawa, Mika Tomita, Hiroko Hayashi, Toshitsugu Sato +1 more 1995-10-03