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Inventor

Youji Hayakawa

Inventor
Ichihara, JP

Overview

4→
Patents
1999–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C08Lprimary
C08LCompositions of macromolecular compounds60%
C02FTreatment of water, waste water, sewage, or sludge20%
C08JWorking-up20%
PatentTitleYear
8,540,855'Water battery device'20136,579,935'Polyester resin composition'20036,075,091'Composition of polyamide and acid or anhydride-grafted ethylene/C6-C20 .alpha.-olefin copolymer'20006,008,297'Polyamide resin composition and process for producing the same'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2003Patents assigned to MITSUI CHEMICALS INC (3)· patent assignee history
1999–2003Based in Ichihara, JP· patent location history
2013Patents assigned to HAYAKAWA AKIHIRO (1)· patent assignee history
2013Patents assigned to HAYAKAWA SHINJI (1)· patent assignee history
2013Patents assigned to HAYAKAWA YOUJI (1)· patent assignee history
2013Patents assigned to YOUJI HAYAKAWA (1)· patent assignee history
2013Based in Yamagata, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUI CHEMICALS INC31999–2003
HAYAKAWA AKIHIRO12013
HAYAKAWA SHINJI12013
HAYAKAWA YOUJIself12013
YOUJI HAYAKAWAself12013
Locations
LocationPatentsSpan
Ichihara, JP31999–2003
Yamagata, JP12013