Inventor

Kiyomi Tsuchiya

Inventor

Shizuoka, JP

Overview

1990–2019

Patent span

Chemistry

Primary field (CPC C)

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

C22Cprimary

C22CAlloys20%

C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys20%

G03GElectrography20%

B21BRolling of metal10%

B22DCasting of metals10%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes10%

Y10TTechnical subjects covered by former us classification10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to HITACHI KOKI KK (1)· patent assignee history

1990Based in Ibaraki, JP· patent location history

2011–2019Patents assigned to NIPPON LIGHT METAL CO (2)· patent assignee history

2011–2019Based in Shizuoka, JP· patent location history

2013Patents assigned to RICOH CO LTD (1)· patent assignee history

2013Patents assigned to TSUCHIYA KIYOMI (1)· patent assignee history

2013Based in Hitachinaka, JP· patent location history

2019Patents assigned to STOCK POINT INC (1)· patent assignee history

2019Based in Tokyo, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations