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Inventor

Seiichirou Ikawa

Inventor
Nobeoka, JP

Overview

3→
Patents
2005–2014
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus30%
G02CSpectacles30%
B29DProducing particular articles from plastics or from substances in a plastic state20%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds20%
PatentTitleYear
8,637,621'Long-wearable soft contact lens'20148,614,261'Silicone hydrogel contact lens'20136,867,245'Long wearable soft contact lens'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to ASAHIKASEI AIME CO LTD (1)· patent assignee history
2005–2014Based in Nobeoka, JP· patent location history
2013–2014Patents assigned to COOPERVISION INT HOLDING CO LP (2)· patent assignee history
2013–2014Patents assigned to HOKI TSUNEO (2)· patent assignee history
2013–2014Patents assigned to IKAWA SEIICHIROU (2)· patent assignee history
2013–2014Patents assigned to IWATA JUNICHI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COOPERVISION INT HOLDING CO LP22013–2014
HOKI TSUNEO22013–2014
IKAWA SEIICHIROUself22013–2014
IWATA JUNICHI22013–2014
ASAHIKASEI AIME CO LTD12005
Locations
LocationPatentsSpan
Nobeoka, JP32005–2014