Inventor

Takashi Hirokawa

Inventor
Chiba, JP

Overview

7→
Patents
2000–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B29Cprimary
B29CShaping or joining of plastics17%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles17%
A01NPreservation of bodies of humans or animals or plants or parts thereof11%
A61KPreparations for medical, dental or toiletry purposes11%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations11%
Y10TTechnical subjects covered by former us classification11%
B29DProducing particular articles from plastics or from substances in a plastic state6%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts6%
B29LIndexing scheme associated with subclass b29c, relating to particular articles6%
C08LCompositions of macromolecular compounds6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2020Patents assigned to TOKIWA CHEM IND LTD (3)· patent assignee history
2000–2001Patents assigned to KINUGAWA RUBBER IND (2)· patent assignee history
2000–2020Based in Chiba, JP· patent location history
2001Patents assigned to DAINIPPON INK & CHEMICALS (1)· patent assignee history
2001–2014Based in Sakura, JP· patent location history
2012–2017Patents assigned to ACTIVUS PHARMA CO LTD (2)· patent assignee history
2012–2014Patents assigned to HIROKAWA TAKASHI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKIWA CHEM IND LTD32000–2020
ACTIVUS PHARMA CO LTD22012–2017
HIROKAWA TAKASHIself22012–2014
KINUGAWA RUBBER IND22000–2001
DAINIPPON INK & CHEMICALS12001
Locations
LocationPatentsSpan
Chiba, JP52000–2020
Sakura, JP22001–2014