Inventor

Shigeo Nishida

Inventor

Sendai, JP

Overview

9→

Patents

1976–1993

Patent span

Electricity

Primary field (CPC H)

Patents· 9 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus16%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light11%

A43BCharacteristic features of footwear5%

B29CShaping or joining of plastics5%

B29DProducing particular articles from plastics or from substances in a plastic state5%

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%

B29LIndexing scheme associated with subclass b29c, relating to particular articles5%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%

C03CChemical composition of glasses, glazes or vitreous enamels5%

C08JWorking-up5%

PatentTitleYear

5,227,753'Electron beam adjusting device'1993 4,972,421'Thin-film coated waveguide laser'1990 4,875,218'Thin-film coated waveguide laser'1989 RE032475'Optical waveguide transmitting light wave energy in single mode'1987 4,672,361'Linear interpolative analog-to-digital converter'1987 4,441,091'Low loss leakage transmission line'1984 4,418,483'Method of manufacturing shoe sole material and shoes products made by the same'1983 4,206,967'Optical fiber'1980 3,997,241'Optical waveguide transmitting light wave energy in single mode'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to HITACHI LTD (3)· patent assignee history

1976–1987Based in Sendai, JP· patent location history

1980–1990Patents assigned to HITACHI CABLE (4)· patent assignee history

1983Patents assigned to RINZAI CO LTD (1)· patent assignee history

1983Based in Hyogo, JP· patent location history

1987Based in Kokubunji, JP· patent location history

1989–1990Based in Miyagi, JP· patent location history

1993Patents assigned to KANEGAFUCHI CHEMICAL IND (1)· patent assignee history

1993Based in Mooka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CABLE	4	1980–1990
HITACHI LTD	3	1976–1987
KANEGAFUCHI CHEMICAL IND	1	1993
RINZAI CO LTD	1	1983

Locations

Location	Patents	Span
Sendai, JP	4	1976–1987
Miyagi, JP	2	1989–1990
Mooka, JP	1	1993
Kokubunji, JP	1	1987
Hyogo, JP	1	1983