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Inventor

Seiji Watahiki

Inventor
Hitachinaka, JP

Overview

2→
Patents
1993–2002
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C04Bprimary
C04BLime, magnesia25%
C23CCoating metallic material25%
H10BElectronic memory devices25%
H10DInorganic electric semiconductor devices25%
PatentTitleYear
6,483,167'Semiconductor device and production method thereof'20025,200,373'High strength composite ceramic structure and process for producing the same'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2002Patents assigned to HITACHI LTD (2)· patent assignee history
1993Based in Katsuta, JP· patent location history
2002Based in Hitachinaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD21993–2002
Locations
LocationPatentsSpan
Hitachinaka, JP12002
Katsuta, JP11993