Keiji Maruyama

Person

Kawasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device
- Patent number 10,522,231
- Issue date Dec 31, 2019
- TOSHIBA MEMORY CORPORATION
- Hiromi Noro
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory system with semiconductor memory and its data transfer method
- Patent number 8,239,744
- Issue date Aug 7, 2012
- Kabushiki Kaisha Toshiba
- Yutaka Shirai
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device, power supply detector and semiconducto...
- Patent number 7,573,306
- Issue date Aug 11, 2009
- Kabushiki Kaisha Toshiba
- Noriyasu Kumazaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Synchronous semiconductor memory device having dynamic memory cells...
- Patent number 6,879,540
- Issue date Apr 12, 2005
- Kabushiki Kaisha Toshiba
- Keiji Maruyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor integrated circuit and memory system
- Patent number 6,768,691
- Issue date Jul 27, 2004
- Kabushiki Kaisha Toshiba
- Noriyasu Kumazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor integrated circuit including ring oscillator of low c...
- Patent number 5,544,120
- Issue date Aug 6, 1996
- Kabushiki Kaisha Toshiba
- Masaaki Kuwagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate bias voltage generator circuit
- Patent number 5,243,228
- Issue date Sep 7, 1993
- Kabushiki Kaisha Toshiba
- Keiji Maruyama
- G05 - CONTROLLING REGULATING
Information Patent Grant
Semiconductor memory
- Patent number 5,031,147
- Issue date Jul 9, 1991
- Kabushiki Kaisha Toshiba
- Keiji Maruyama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR MEMORY DEVICE
- Publication number 20190259460
- Publication date Aug 22, 2019
- Toshiba Memory Corporation
- Hiromi NORO
- G11 - INFORMATION STORAGE
Information Patent Application
MEMORY SYSTEM WITH SEMICONDUCTOR MEMORY AND ITS DATA TRANSFER METHOD
- Publication number 20090319871
- Publication date Dec 24, 2009
- Yutaka SHIRAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE AND TEST METHOD THEREOF
- Publication number 20090319840
- Publication date Dec 24, 2009
- Tokumasa Hara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE, POWER SUPPLY DETECTOR AND SEMICONDUCTO...
- Publication number 20070176654
- Publication date Aug 2, 2007
- Kabushiki Kaisha Toshiba
- Noriyasu Kumazaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Synchronous semiconductor memory device having dynamic memory cells...
- Publication number 20040081011
- Publication date Apr 29, 2004
- Kabushiki Kaisha Toshiba
- Keiji Maruyama
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor integrated circuit and memory system
- Publication number 20030047757
- Publication date Mar 13, 2003
- Kabushiki Kaisha Toshiba
- Noriyasu Kumazaki
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor integrated circuit device
- Publication number 20020038914
- Publication date Apr 4, 2002
- Kabushiki Kaisha Toshiba
- Keiji Maruyama
- H01 - BASIC ELECTRIC ELEMENTS

Keiji Maruyama

Person

Patents Grantslast 30 patents

Semiconductor memory device

Memory system with semiconductor memory and its data transfer method

Semiconductor memory device, power supply detector and semiconducto...

Synchronous semiconductor memory device having dynamic memory cells...

Semiconductor integrated circuit and memory system

Semiconductor integrated circuit including ring oscillator of low c...

Substrate bias voltage generator circuit

Semiconductor memory

Patents Applicationslast 30 patents

SEMICONDUCTOR MEMORY DEVICE

MEMORY SYSTEM WITH SEMICONDUCTOR MEMORY AND ITS DATA TRANSFER METHOD

SEMICONDUCTOR MEMORY DEVICE AND TEST METHOD THEREOF

SEMICONDUCTOR MEMORY DEVICE, POWER SUPPLY DETECTOR AND SEMICONDUCTO...

Synchronous semiconductor memory device having dynamic memory cells...

Semiconductor integrated circuit and memory system

Semiconductor integrated circuit device