P

Inventor

SATO YASUO

JP133 patents
⚠️ This page may combine multiple inventors who share the name “SATO YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON STEEL CORP

18 patents
US5596527AJan 21, 1997

Electrically alterable n-bit per cell non-volatile memory with reference cells

NIPPON STEEL CORP251 citations99
US5418743AMay 23, 1995

Method of writing into non-volatile semiconductor memory

NIPPON STEEL CORP158 citations99
US6469343B1Oct 22, 2002

Multi-level type nonvolatile semiconductor memory device

NIPPON STEEL CORP114 citations98
US5424978AJun 13, 1995

Non-volatile semiconductor memory cell capable of storing more than two different data and method of using the same

NIPPON STEEL CORP176 citations98
US5793081AAug 11, 1998

Nonvolatile semiconductor storage device and method of manufacturing

NIPPON STEEL CORP60 citations96
US6596590B1Jul 22, 2003

Method of making multi-level type non-volatile semiconductor memory device

NIPPON STEEL CORP55 citations95
US6285596B1Sep 4, 2001

Multi-level type nonvolatile semiconductor memory device

NIPPON STEEL CORP57 citations95
US5960283ASep 28, 1999

Nonvolatile semiconductor memory device and method of fabrication of the same

NIPPON STEEL CORP26 citations93
US5726470AMar 10, 1998

Nonvolatile semiconductor memory device and method of fabrication of the same

NIPPON STEEL CORP20 citations93
US5686333ANov 11, 1997

Nonvolatile semiconductor memory device and method of producing the same

NIPPON STEEL CORP21 citations93
US6649542B2Nov 18, 2003

Multi-level type nonvolatile semiconductor memory device

NIPPON STEEL CORP17 citations92
US6605839B2Aug 12, 2003

Multi-level type nonvolatile semiconductor memory device

NIPPON STEEL CORP21 citations92
US5592003AJan 7, 1997

Nonvolatile semiconductor memory and method of rewriting data thereto

NIPPON STEEL CORP23 citations92
US5612238AMar 18, 1997

Method of manufacturing first and second memory cell arrays with a capacitor and a nonvolatile memory cell

NIPPON STEEL CORP40 citations90
US5900661AMay 4, 1999

EEPROM with bit lines below word lines

NIPPON STEEL CORP18 citations84
US5796149AAug 18, 1998

Semiconductor memory using different concentration impurity diffused layers

NIPPON STEEL CORP17 citations83
US5808943ASep 15, 1998

Semiconductor memory and method of manufacturing the same

NIPPON STEEL CORP18 citations82
US5594688AJan 14, 1997

Nonvolatile semiconductor memory device and method of producing the same

NIPPON STEEL CORP9 citations74

FUJITSU LTD

9 patents

HITACHI LTD

5 patents

MITSUBISHI ELECTRIC CORP

3 patents

TOYOTA MOTOR CO LTD

3 patents

SATO YASUO

3 patents

NHK SPRING CO LTD

2 patents

SONY CORP

1 patent

MEIJI SEIKA KAISHA

1 patent

KURODA PRECISION IND LTD

1 patent

ORIENTAL MOTOR BOSTON TECHNOLO

1 patent

ORIENTAL MOTOR CO LTD

1 patent

CLARION CO LTD

1 patent

TOMITA YASUSHI

1 patent

Showing the top 50 of 133 patents by PatentIndex Score.