Tian; Zengcheng

Patent Applications and Registrations

Patent applications and USPTO patent grants for Tian; Zengcheng.The latest application filed is for "semiconductor memory device requiring refresh operation".

Company Profile

0.8.8

Tian; Zengcheng - Hyogo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Semiconductor device having internal voltage generated stably Grant 6,954,103 - Yamauchi , et al. October 11, 2	2005-10-11
Semiconductor circuit device adaptable to plurality of types of packages Grant 6,873,563 - Suwa , et al. March 29, 2	2005-03-29
Semiconductor memory device requiring refresh operation Grant 6,813,210 - Okamoto , et al. November 2, 2	2004-11-02
Semiconductor memory device switchable to twin memory cell configuration Grant 6,775,177 - Okamoto , et al. August 10, 2	2004-08-10
Semiconductor device used in two systems having different power supply voltages Grant 6,724,223 - Ichiguchi , et al. April 20, 2	2004-04-20
Semiconductor memory device allowing high density structure or high performance Grant 6,724,679 - Nagasawa , et al. April 20, 2	2004-04-20
Semiconductor device Grant 6,717,460 - Yamauchi , et al. April 6, 2	2004-04-06
Semiconductor memory device requiring refresh operation App 20030218931 - Okamoto, Takeo ; et al.	2003-11-27
Semiconductor device having internal voltage generated stably App 20030214345 - Yamauchi, Tadaaki ; et al.	2003-11-20
Semiconductor memory device switchable to twin memory cell configuration App 20030214832 - Okamoto, Takeo ; et al.	2003-11-20
Semiconductor circuit device adaptable to plurality of types of packages App 20030214344 - Suwa, Makoto ; et al.	2003-11-20
Semiconductor device used in two systems having different power supply voltages App 20030213972 - Ichiguchi, Tetsuichiro ; et al.	2003-11-20
Semiconductor memory device adaptable to various types of packages Grant 6,625,050 - Suwa , et al. September 23, 2	2003-09-23
Semiconductor memory device allowing high density structure or high performance App 20030081490 - Nagasawa, Tsutomu ; et al.	2003-05-01
Semiconductor memory device adaptable to various types of packages App 20030081443 - Suwa, Makoto ; et al.	2003-05-01
Semiconductor device App 20030081461 - Yamauchi, Tadaaki ; et al.	2003-05-01

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