Inventor

Yoshifumi Oka

Inventor
Tokyo, JP

Overview

5→
Patents
1986–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H01Lprimary
H01LSemiconductor devices16%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1016%
C09JAdhesives11%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1011%
B23KSoldering or unsoldering5%
B26DCutting5%
B29CShaping or joining of plastics5%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts5%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
C03BManufacture, shaping, or supplementary processes5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986Patents assigned to CENTRAL GLASS CO LTD (1)· patent assignee history
1986Patents assigned to MITSUI BUSSAN (1)· patent assignee history
1986Based in Suzuka, JP· patent location history
2019–2020Patents assigned to FURUKAWA ELECTRIC CO LTD (3)· patent assignee history
2019–2020Based in Tokyo, JP· patent location history
2021Patents assigned to DOW SILICONES CORP (1)· patent assignee history
2021Patents assigned to DOW TORAY CO LTD (1)· patent assignee history
2021Based in Ichihara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FURUKAWA ELECTRIC CO LTD32019–2020
CENTRAL GLASS CO LTD11986
DOW SILICONES CORP12021
DOW TORAY CO LTD12021
MITSUI BUSSAN11986
Locations
LocationPatentsSpan
Tokyo, JP32019–2020
Ichihara, JP12021
Suzuka, JP11986