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Inventor

Yo Maeda

Inventor
Yuki, JP

Overview

4→
Patents
1976–1981
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 4 as inventor

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

A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
B04BCentrifuges11%
F16LPipes11%
H01HElectric switches11%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1011%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
4,305,897'Packaging process for semiconductors'19814,194,738'Frame of a game racket'19804,039,006'Carbon filament wound cylinder and method of producing the same'19773,998,458'Golf club shaft'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to HITACHI CHEMICAL CO LTD (4)· patent assignee history
1976–1981Based in Yuki, JP· patent location history
1977Based in Shimodate, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI CHEMICAL CO LTD41976–1981
Locations
LocationPatentsSpan
Yuki, JP31976–1981
Shimodate, JP11977