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Inventor

Tamao Takatsu

Inventor
Tokyo, JP

Overview

5→
Patents
1987–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

B23Kprimary
B23KSoldering or unsoldering71%
C22CAlloys29%
PatentTitleYear
10,675,720High Cr Ni-based alloy welding wire, shielded metal arc welding rod, and weld metal formed by shielded metal arc welding20206,521,060'Filler metal for use in welding of Ni-Cr-W alloys'20036,303,904'Weld material, gas metal arc welding method, and welded structure'20016,290,904'Welding materials for high-Cr steels'20014,673,123'Filler for welding a heat resistant nickel-base alloy'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2020Patents assigned to NIPPON WELDING ROD CO LTD (5)· patent assignee history
1987Patents assigned to FUJI ELECTRIC CO LTD (1)· patent assignee history
1987Patents assigned to FUJI ELECTRIC RES (1)· patent assignee history
1987–2020Based in Tokyo, JP· patent location history
2001–2020Patents assigned to MITSUBISHI HEAVY IND LTD (3)· patent assignee history
2001Based in Hamakita, JP· patent location history
2003Based in Shizuoka, JP· patent location history
2020Patents assigned to ASADA SEIJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON WELDING ROD CO LTD51987–2020
MITSUBISHI HEAVY IND LTD32001–2020
ASADA SEIJI12020
FUJI ELECTRIC CO LTD11987
FUJI ELECTRIC RES11987
Locations
LocationPatentsSpan
Tokyo, JP21987–2020
Hamakita, JP22001
Shizuoka, JP12003