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Inventor

Eiji Yamasaki

Inventor
Fussa, JP

Overview

9→
Patents
1980–2008
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

G11Cprimary
G11CStatic stores54%
F23DBurners8%
G06FElectric digital data processing8%
G06KGraphical data reading8%
G11BInformation storage based on relative movement between record carrier and transducer8%
H05BElectric heating8%
H10BElectronic memory devices8%
PatentTitleYear
7,464,315'Semiconductor memory device'20087,228,377'Semiconductor integrated circuit device, IC card, and mobile terminal'20077,221,610'Charge pump circuit for generating high voltages required in read/write/erase/standby modes in non-volatile memory device'20077,184,351'Semiconductor memory device'20075,555,215'Semiconductor memory operating with low supply voltage'19965,301,142'Semiconductor memory'19945,264,743'Semiconductor memory operating with low supply voltage'19934,533,316'Vaporizing type fuel combustion apparatus with tar removal device'19854,230,323'Automatic record player'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1985Patents assigned to SHARP KK (2)· patent assignee history
1980–1985Based in Nara, JP· patent location history
1993–1996Patents assigned to HITACHI LTD (3)· patent assignee history
1993–1994Patents assigned to HITACHI VLSI ENG (2)· patent assignee history
1993–1996Based in Fussa, JP· patent location history
2007–2008Patents assigned to ELPIDA MEMORY INC (2)· patent assignee history
2007Patents assigned to RENESAS TECH CORP (2)· patent assignee history
2007–2008Based in Tokyo, JP· patent location history
2007Based in Kodaira, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31993–1996
ELPIDA MEMORY INC22007–2008
HITACHI VLSI ENG21993–1994
RENESAS TECH CORP22007
SHARP KK21980–1985
Locations
LocationPatentsSpan
Fussa, JP31993–1996
Tokyo, JP22007–2008
Kodaira, JP22007
Nara, JP21980–1985