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Inventor

Aiji Matsumoto

Inventor
Hamamatsu, JP

Overview

3→
Patents
1998–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer22%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling11%
B23KSoldering or unsoldering11%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form11%
C21DModifying the physical structure of ferrous metals11%
C22CAlloys11%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys11%
F16LPipes11%
PatentTitleYear
11,079,045Electric resistance welded clad steel pipe or tube and method of producing same20215,982,582'Flying-type magnetic head and having rhombic or cut rhombic lubricating surfaces'19995,721,649'Floating type magnetic head slider having air inflow side triangular protrusions'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–1999Patents assigned to MINEBEA CO LTD (2)· patent assignee history
1998–1999Based in Hamamatsu, JP· patent location history
2021Patents assigned to JFE STEEL CORP (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINEBEA CO LTD21998–1999
JFE STEEL CORP12021
Locations
LocationPatentsSpan
Hamamatsu, JP21998–1999
Tokyo, JP12021