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Inventor

Shinichi Akai

Inventor
Fukuyama, JP

Overview

3→
Patents
1987–2004
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

B22Dprimary
B22DCasting of metals25%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel25%
C30BSingle-crystal growth25%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
6,793,710'Method for blowing oxygen in converter and top-blown lance for blowing oxygen'20046,316,106'Filler sand for a ladle tap hole valve'20014,645,560'Liquid encapsulation method for growing single semiconductor crystals'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1987Patents assigned to SUMITO ELECTRIC IND LTD (1)· patent assignee history
1987Based in Itami, JP· patent location history
2001–2004Patents assigned to NIPPON KOKAN KK (2)· patent assignee history
2001Patents assigned to NIPPON ROTARY NOZZLE CO LTD (1)· patent assignee history
2001Based in Tokyo, JP· patent location history
2004Based in Fukuyama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON KOKAN KK22001–2004
NIPPON ROTARY NOZZLE CO LTD12001
NIPPON TELEGRAPH & TELEPHONE11987
SUMITO ELECTRIC IND LTD11987
Locations
LocationPatentsSpan
Fukuyama, JP12004
Tokyo, JP12001
Itami, JP11987