Inventor

Eiichi Yamamoto

Inventor

Tsukuba, JP

Overview

1997–2021

Patent span

Electricity

Primary field (CPC H)

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

C07Dprimary

C07DHeterocyclic compounds16%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations13%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1010%

A61KPreparations for medical, dental or toiletry purposes6%

B24BMachines, devices, or processes for grinding or polishing6%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons6%

H01LSemiconductor devices6%

H01QAntennas, i.e. radio aerials6%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1997–1998Based in Hatsukaichi, JP· patent location history

1999–2001Patents assigned to TORAY INDUSTRIES (3)· patent assignee history

1999–2001Based in Ehime, JP· patent location history

2005–2006Patents assigned to EISAI CO LTD (2)· patent assignee history

2005–2006Based in Ibaraki, JP· patent location history

2009–2013Patents assigned to EISAI R&D MAN CO LTD (4)· patent assignee history

2009–2013Based in Tsukuba, JP· patent location history

2011–2013Patents assigned to YAMAMOTO EIICHI (4)· patent assignee history

2013–2021Patents assigned to OKAMOTO MACHINE TOOL WORKS (3)· patent assignee history

2020–2021Based in Gunma, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations