Keiji Fukumura

Person

Hyougo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Current limiting circuit configured to limit output current of driv...
- Patent number 9,063,558
- Issue date Jun 23, 2015
- Ricoh Company, Ltd.
- Keiji Fukumura
- G05 - CONTROLLING REGULATING
Information Patent Grant
Semiconductor package and electronic component package
- Patent number 8,415,811
- Issue date Apr 9, 2013
- Ricoh Company, Ltd.
- Keiji Fukumura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
NMOS input receiver circuit
- Patent number 6,002,618
- Issue date Dec 14, 1999
- Creative Integrated Systems
- James A. Komarek
- G11 - INFORMATION STORAGE
Information Patent Grant
Output circuit of a semiconductor memory device for providing an in...
- Patent number 5,953,262
- Issue date Sep 14, 1999
- Ricoh Company, Ltd.
- Keiji Fukumura
- G11 - INFORMATION STORAGE
Information Patent Grant
VLSI memory circuit
- Patent number 5,870,346
- Issue date Feb 9, 1999
- Creative Integrated Ststems, Inc.
- James A. Komarek
- G11 - INFORMATION STORAGE
Information Patent Grant
Output driver control for ROM and RAM devices
- Patent number 5,608,687
- Issue date Mar 4, 1997
- Creative Integrated Systems, Inc.
- James A. Komarek
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for read cycle interrupts in a dynamic read-only memory
- Patent number 5,487,038
- Issue date Jan 23, 1996
- Creative Integrated Systems, Inc.
- James A. Komarek
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device using high-density and high-speed MOS e...
- Patent number 4,990,999
- Issue date Feb 5, 1991
- Ricoh Company, Ltd.
- Motohiro Oishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sense circuit of a semiconductor memory device
- Patent number 4,774,692
- Issue date Sep 27, 1988
- Ricoh Company, Ltd.
- Motohiro Oishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Wafer box
- Patent number 4,574,950
- Issue date Mar 11, 1986
- Sumitomo Electric Industries, Ltd.
- Kiyohiko Koe
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
CURRENT LIMITING CIRCUIT
- Publication number 20120313609
- Publication date Dec 13, 2012
- RICOH COMPANY , LTD.
- Keiji Fukumura
- G05 - CONTROLLING REGULATING
Information Patent Application
SEMICONDUCTOR PACKAGE AND ELECTRONIC COMPONENT PACKAGE
- Publication number 20120104577
- Publication date May 3, 2012
- RICOH COMPANY, LTD.
- Keiji FUKUMURA
- H01 - BASIC ELECTRIC ELEMENTS

Keiji Fukumura

Person

Patents Grantslast 30 patents

Current limiting circuit configured to limit output current of driv...

Semiconductor package and electronic component package

NMOS input receiver circuit

Output circuit of a semiconductor memory device for providing an in...

VLSI memory circuit

Output driver control for ROM and RAM devices

Method for read cycle interrupts in a dynamic read-only memory

Semiconductor memory device using high-density and high-speed MOS e...

Sense circuit of a semiconductor memory device

Wafer box

Patents Applicationslast 30 patents

CURRENT LIMITING CIRCUIT

SEMICONDUCTOR PACKAGE AND ELECTRONIC COMPONENT PACKAGE