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Inventor

Kazunori Koga

Inventor
Hitachi, JP

Overview

9→
Patents
1978–1997
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

C04Bprimary
C04BLime, magnesia33%
G01NInvestigating or analysing materials by determining their chemical or physical properties27%
C01BNon-metallic elements13%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%
G01SRadio direction-finding7%
G10KSound-producing devices7%
PatentTitleYear
5,681,995'Ultrasonic flaw detecting apparatus for inspecting multi-layer structure and method thereof'19975,219,500'Silicon nitride sintered body and process for preparation thereof'19935,114,889'Silicon nitride sintered body and process for preparation thereof'19924,920,085'Silicon nitride sintered body and process for preparation thereof'19904,736,630'Apparatus and method for sending out and receiving ultrasonic wave signals'19884,615,217'Two-probe ultrasonic flaw detection apparatus'19864,592,237'Method of selecting composite reception signal in ultrasonic inspection apparatus and apparatus therefor'19864,374,793'Method of producing dense sintered silicon carbide body from polycarbosilane'19834,105,455'Method of producing dense sintered silicon carbide body from polycarbosilanes'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1983Patents assigned to KYOTO CERAMIC (2)· patent assignee history
1978–1983Based in Kyoto, JP· patent location history
1986–1997Patents assigned to HITACHI LTD (4)· patent assignee history
1986–1997Based in Hitachi, JP· patent location history
1990–1993Patents assigned to KYOCERA CORP (3)· patent assignee history
1990–1993Based in Kokubu, JP· patent location history
1997Patents assigned to BABCOCK HITACHI KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41986–1997
KYOCERA CORP31990–1993
KYOTO CERAMIC21978–1983
BABCOCK HITACHI KK11997
Locations
LocationPatentsSpan
Hitachi, JP41986–1997
Kokubu, JP31990–1993
Kyoto, JP21978–1983