Inventor

Tsutomu Higuchi

Inventor

Tokyo, JP

Overview

20→

Patents

1988–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 20 as inventor

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

G11Cprimary

G11CStatic stores19%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1011%

G06KGraphical data reading8%

H05KPrinted circuits8%

H10BElectronic memory devices8%

Y10TTechnical subjects covered by former us classification8%

C25DProcesses for the electrolytic or electrophoretic production of coatings6%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids6%

C01BNon-metallic elements3%

C23CCoating metallic material3%

PatentTitleYear

10,644,348Crystalline solid electrolyte and production method therefor2020 7,808,835'Non-volatile semiconductor storage device'2010 7,525,845'Non-volatile semiconductor storage device'2009 7,242,625'Memory macro with modular peripheral circuit elements'2007 6,882,588'Memory macro with modular peripheral circuit elements having a number of line drivers selectable based on number of memory blocks'2005 6,839,261'Semiconductor memory device'2005 6,833,614'Semiconductor package and semiconductor device'2004 6,567,328'Memory macro with modular peripheral circuit elements'2003 6,552,694'Semiconductor device and fabrication method thereof'2003 6,548,153'Composite material used in making printed wiring boards'2003 6,544,664'Copper foil for printed wiring board'2003 6,541,126'Electrolytic copper foil with carrier foil and copper-clad laminate using the electrolytic copper foil'2003 6,501,440'IC card, antenna frame for IC card and method for manufacturing the same'2002 6,380,614'Non-contact type IC card and process for manufacturing same'2002 6,335,099'Corrosion resistant, magnesium-based product exhibiting luster of base metal and method for producing the same'2002 6,254,362'Vacuum pump with dust collecting function'2001 6,240,036'Voltage supply circuit in a semiconductor memory device'2001 6,049,111'Semiconductor device including protective circuit with guard ring'2000 5,277,357'Process for making a metal wall of a package used for accommodating electronic elements'1994 4,789,314'Multi-section roots vacuum pump of reverse flow cooling type with internal flow division arrangement'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2001Patents assigned to UNOZAWA GUMI IRON WORKS (2)· patent assignee history

1994–2004Patents assigned to SHINKO ELECTRIC IND CO (5)· patent assignee history

1994–2004Based in Nagano, JP· patent location history

2000–2007Patents assigned to OKI ELECTRIC IND CO LTD (6)· patent assignee history

2000–2007Based in Tokyo, JP· patent location history

2002–2020Patents assigned to MITSUI MINING & SMELTING CO (5)· patent assignee history

2002–2020Based in Saitama, JP· patent location history

2003Based in Ageo, JP· patent location history

2009–2010Patents assigned to OKI SEMICONDUCTOR CO LTD (2)· patent assignee history

2009–2010Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OKI ELECTRIC IND CO LTD	6	2000–2007
MITSUI MINING & SMELTING CO	5	2002–2020
SHINKO ELECTRIC IND CO	5	1994–2004
OKI SEMICONDUCTOR CO LTD	2	2009–2010
UNOZAWA GUMI IRON WORKS	2	1988–2001

Locations

Location	Patents	Span
Tokyo, JP	6	2000–2007
Nagano, JP	5	1994–2004
Saitama, JP	3	2002–2020
Kanagawa, JP	2	2009–2010
Ageo, JP	2	2003