Inventor

Tohru Chiba

Inventor

Niigata, JP

Overview

12→

Patents

1989–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 12 as inventor

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes21%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%

A61JContainers specially adapted for medical or pharmaceutical purposes4%

C04BLime, magnesia4%

C07KPeptides4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C08LCompositions of macromolecular compounds4%

C09KMaterials for miscellaneous applications, not provided for elsewhere4%

C12NMicroorganisms or enzymes4%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture4%

PatentTitleYear

11,105,066Work machine2021 5,436,127'Epitope-related peptides of human parvovirus'1995 5,232,842'Method for preparing chitosan'1993 5,151,752'Method of measuring refractive indices of lens and sample liquid'1992 5,086,077'Endermic medicament with a gel base'1992 5,047,086'Cement composition for extrusion'1991 5,008,113'Method for preparing film coated pharmaceutical preparations and method for improving properties thereof'1991 4,948,622'Method for the preparation of coated solid medicament form'1990 4,917,885'Hard medicinal capsule'1990 4,882,517'Electroluminescent composition containing organopolysiloxane and electroluminescent device usable as a back-lighting unit for liquid crystal display'1989 4,843,517'Film capacitor'1989 4,837,033'Method for the preparation of a coated solid medicament'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1995Patents assigned to SHINETSU CHEMICAL CO (9)· patent assignee history

1989–1992Based in Niigata, JP· patent location history

1991Based in Joetsu-shi, JP· patent location history

1992Patents assigned to ASAHI OPTICAL CO LTD (1)· patent assignee history

1992Based in Tokyo, JP· patent location history

1993Patents assigned to RIKAGAKU KENKYUSHO (1)· patent assignee history

1993Patents assigned to SHIN ESTU CHEMICAL CO LTD (1)· patent assignee history

1993–1995Based in Kanagawa, JP· patent location history

2021Patents assigned to HITACHI CONSTRUCTION MACH CO (1)· patent assignee history

2021Based in Kasumigaura, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHINETSU CHEMICAL CO	9	1989–1995
ASAHI OPTICAL CO LTD	1	1992
HITACHI CONSTRUCTION MACH CO	1	2021
RIKAGAKU KENKYUSHO	1	1993
SHIN ESTU CHEMICAL CO LTD	1	1993

Locations

Location	Patents	Span
Niigata, JP	6	1989–1992
Kanagawa, JP	2	1993–1995
Joetsu-shi, JP	2	1991
Kasumigaura, JP	1	2021
Tokyo, JP	1	1992