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Inventor

Toshiyuki Katayama

Inventor
Hyogo, JP

Overview

5→
Patents
1981–2011
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

F16Lprimary
F16LPipes38%
B21BRolling of metal13%
C23CCoating metallic material13%
F16CShafts13%
H04LTransmission of digital information, e.g. telegraphic communication13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
8,020,897'Joint structure of steel pipe and light metal pipe'20117,661,720'Connection structure for different kinds of metal tubes'20105,944,644'Roll of winding equipment in rolling factory'19995,379,325'Clock generating apparatus, data transmitting/receiving apparatus and data transmitting/receiving method'19954,285,534'Pulsation-absorbing flexible pipe for pressure fluid device'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to NICHIRIN RUBBER IND (1)· patent assignee history
1981Based in Ako, JP· patent location history
1995Patents assigned to HITACHI ENG CO LTD (1)· patent assignee history
1995Patents assigned to HITACHI LTD (1)· patent assignee history
1995Based in Hitachi, JP· patent location history
1999Patents assigned to NIPPON STEEL HARDFACING (1)· patent assignee history
1999Based in Chiba, JP· patent location history
2010–2011Patents assigned to NICHIRIN CO LTD (2)· patent assignee history
2010Based in Himeji, JP· patent location history
2011Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NICHIRIN CO LTD22010–2011
HITACHI ENG CO LTD11995
HITACHI LTD11995
NICHIRIN RUBBER IND11981
NIPPON STEEL HARDFACING11999
Locations
LocationPatentsSpan
Hyogo, JP12011
Himeji, JP12010
Chiba, JP11999
Hitachi, JP11995
Ako, JP11981