Inventor

Shigeaki Shimizu

Inventor

Tokyo, JP

Overview

8→

Patents

1984–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 8 as inventor

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

H01Gprimary

H01GCapacitors24%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1018%

H01LSemiconductor devices12%

B22FWorking metallic powder6%

G02BOptical elements, systems or apparatus6%

G06KGraphical data reading6%

H10BElectronic memory devices6%

H10DInorganic electric semiconductor devices6%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation6%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%

PatentTitleYear

10,818,813Semiconductor device and manufacturing method thereof2020 9,589,954'Semiconductor device having recess filled with insulating material provided between source/drain impurity region and gate insulator'2017 8,455,925'Semiconductor device and method for manufacturing the same'2013 5,227,642'Apparatus for optically reading and discriminating symbols or characters represented by indentations formed on the surface of a sample'1993 4,604,260'Method of producing electrolytic capacitor with Al-Ti anode body'1986 4,517,727'Method of producing a porous body for electrolytic capacitor having a lead wire'1985 4,468,719'Porous body for a solid electrolytic capacitor and process for producing the same'1984 4,432,935'Method of producing porous body for solid electrolytic capacitor'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to NIPPON ELECTRIC CO (2)· patent assignee history

1984–1986Based in Tokyo, JP· patent location history

1985–1986Patents assigned to NEC CORP (2)· patent assignee history

1993Based in Nirasaki, JP· patent location history

2013Patents assigned to HIMUKAI TSUTOMU (1)· patent assignee history

2013Patents assigned to ITOU TAKAMASA (1)· patent assignee history

2013Based in Kanagawa, JP· patent location history

2017–2020Patents assigned to RENESAS ELECTRONICS CORP (2)· patent assignee history

2017–2020Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NEC CORP	2	1985–1986
NIPPON ELECTRIC CO	2	1984
RENESAS ELECTRONICS CORP	2	2017–2020
HIMUKAI TSUTOMU	1	2013
ITOU TAKAMASA	1	2013

Locations

Location	Patents	Span
Tokyo, JP	4	1984–1986
Ibaraki, JP	2	2017–2020
Kanagawa, JP	1	2013
Nirasaki, JP	1	1993