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Inventor

Tomio Iizuka

Inventor
Ibaraki, JP

Overview

9→
Patents
1976–1992
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.

B23Kprimary
B23KSoldering or unsoldering38%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1023%
H01JElectric discharge tubes or discharge lamps15%
C22CAlloys8%
G02BOptical elements, systems or apparatus8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,153,704'Semiconductor device using annealed bonding wire'19924,478,363'Method of production of composite billet for fuel cladding tube'19844,367,017'Laser beam reflection system'19834,331,286'Method for pressure bonding metal members by utilizing eutectic reaction'19824,144,992'Method for controlling an automatic pipe welder'19794,129,801'Cathode for cathode ray tube of directly heating type and process for producing the same cathode'19784,114,243'Process for producing cathode for cathode ray tube of directly heating type'19784,083,719'Copper-carbon fiber composites and process for preparation thereof'19783,969,754'Semiconductor device having supporting electrode composite structure of metal containing fibers'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1992Patents assigned to HITACHI LTD (9)· patent assignee history
1976–1984Based in Ibaraki, JP· patent location history
1978Based in Naka, JP· patent location history
1982–1983Based in Tokai, JP· patent location history
1992Based in Toukai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD91976–1992
Locations
LocationPatentsSpan
Ibaraki, JP51976–1984
Tokai, JP21982–1983
Toukai, JP11992
Naka, JP11978