LexDanaLexDanabeta
Inventor

Tatsuro Kunitake

Inventor
Amagasaki, JP

Overview

2→
Patents
1978–1982
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.

C21Dprimary
C21DModifying the physical structure of ferrous metals67%
C22CAlloys33%
PatentTitleYear
4,344,801'Heavy thick high-strength casting having improved weldability and impact properties'19824,102,711'Method of producing a tube of ultra-high strength steel having remarkably improved ductility and toughness'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1982Patents assigned to SUMITOMO METAL IND (2)· patent assignee history
1978Based in Toyonaka, JP· patent location history
1982Based in Amagasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO METAL IND21978–1982
Locations
LocationPatentsSpan
Amagasaki, JP11982
Toyonaka, JP11978