Inventor

Yoshio Ishida

Inventor

Osaka, JP

Overview

1976–2021

Patent span

Mechanical engineering

Primary field (CPC F)

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

F28Dprimary

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact16%

H01JElectric discharge tubes or discharge lamps16%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%

B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling6%

C04BLime, magnesia6%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application6%

G06FElectric digital data processing6%

A61BDiagnosis3%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1976–1979Patents assigned to HITACHI LTD (5)· patent assignee history

1976Patents assigned to ASAHI CHEMICAL IND (1)· patent assignee history

1976–1979Based in Mobara, JP· patent location history

1993Based in Chiba, JP· patent location history

1996–2009Patents assigned to DIAMOND ELECTRIC MFG (6)· patent assignee history

1996Patents assigned to DIAMOND ELECTROIC MFG CO LTD (1)· patent assignee history

1996–2009Based in Osaka, JP· patent location history

1998Patents assigned to DIAMOND ELECTRIC MFT (1)· patent assignee history

2015Based in Tokyo, JP· patent location history

2021Based in Saitama, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations