Inventor

Kuniharu Yamada

Inventor

Suwa, JP

Overview

9→

Patents

1977–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 9 as inventor

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

B23Hprimary

B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool42%

G04FTime-interval measuring17%

H01GCapacitors17%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%

G04GElectronic time-pieces8%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses8%

PatentTitleYear

10,730,126Power supply device for wire electric discharge machining2020 9,833,852Wire electrical discharge machining device2017 9,744,607'Power supply system for wire electric discharge machining'2017 8,648,275'Power supply device for sinker electric discharge machining'2014 6,281,463'Power supply device for electric discharge machine'2001 4,460,936'Condenser'1984 4,109,456'Ceramic capacitor'1978 4,068,285'Variable capacitor'1978 4,006,969'Electro-chromic display device'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1984Patents assigned to SUWA SEIKOSHA KK (4)· patent assignee history

1977–1984Based in Suwa, JP· patent location history

2001–2020Patents assigned to SODICK CO LTD (5)· patent assignee history

2001–2014Based in Fukui, JP· patent location history

2014–2017Patents assigned to YAMADA KUNIHARU (3)· patent assignee history

2014–2017Patents assigned to YANAGISAWA TOMOYUKI (3)· patent assignee history

2017Patents assigned to KOUGO MASAKI (1)· patent assignee history

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

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SODICK CO LTD	5	2001–2020
SUWA SEIKOSHA KK	4	1977–1984
YAMADA KUNIHARUself	3	2014–2017
YANAGISAWA TOMOYUKI	3	2014–2017
KOUGO MASAKI	1	2017

Locations

Location	Patents	Span
Suwa, JP	4	1977–1984
Kanagawa, JP	3	2017–2020
Fukui, JP	2	2001–2014