Inventor

Yasurou Kubota

Inventor

Akishima, JP

Overview

1992–2008

Patent span

Physics

Primary field (CPC G)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Cprimary

G11CStatic stores100%

PatentTitleYear

7,372,741'Nonvolatile memory apparatus having a processor and plural memories one or more of which is a nonvolatile memory having circuitry which performs an erase operation and an erase verify operation when the processor specifies the erase operation mode to the nonvolatile memory'2008 7,099,199'Nonvolatile semiconductor memory device'2006 7,020,028'Nonvolatile semiconductor memory device'2006 6,791,882'Nonvolatile semiconductor memory device'2004 6,747,902'Nonvolatile semiconductor memory apparatus'2004 6,438,036'Nonvolatile semiconductor memory device'2002 6,259,629'Nonvolatile semiconductor memory device'2001 6,181,600'Nonvolatile semiconductor memory device'2001 6,157,576'Nonvolatile semiconductor memory device'2000 6,016,273'Nonvolatile semiconductor memory device'2000 5,991,200'Nonvolatile semiconductor memory device'1999 5,959,894'Nonvolatile semiconductor memory device'1999 5,949,715'Nonvolatile semiconductor memory device'1999 5,917,752'Nonvolatile semiconductor memory device'1999 5,844,842'Nonvolatile semiconductor memory device'1998 5,781,476'Nonvolatile semiconductor memory device'1998 5,315,547'Nonvolatile semiconductor memory device with selective tow erasure'1994 5,097,446'Nonvolatile semiconductor memory device'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2002Patents assigned to HITACHI LTD (13)· patent assignee history

1992–1994Patents assigned to HITACHI VLSI ENG (2)· patent assignee history

1992–2008Based in Akishima, JP· patent location history

1994Based in Tokyo, JP· patent location history

1998–2002Patents assigned to HITACHI ULSI ENG CORP (7)· patent assignee history

2004–2008Patents assigned to HITACHI ULSI SYS CO LTD (4)· patent assignee history

2004–2008Patents assigned to RENESAS TECH CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	13	1992–2002
HITACHI ULSI ENG CORP	7	1998–2002
HITACHI ULSI SYS CO LTD	4	2004–2008
RENESAS TECH CORP	3	2004–2008
HITACHI VLSI ENG	2	1992–1994

Locations

Location	Patents	Span
Akishima, JP	17	1992–2008
Tokyo, JP	1	1994