Inventor

Akinori Ryu

Inventor

Arao, JP

Overview

1995–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 24 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus23%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds18%

C08LCompositions of macromolecular compounds15%

G02CSpectacles9%

C07DHeterocyclic compounds6%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%

Y10TTechnical subjects covered by former us classification5%

B29DProducing particular articles from plastics or from substances in a plastic state4%

C09KMaterials for miscellaneous applications, not provided for elsewhere4%

C09DCoating compositions, e.g. paints, varnishes or lacquers3%

PatentTitleYear

10,663,622Plastic polarized lens and method of producing the same2020 10,563,003Polymerizable composition for optical material, optical material obtained from composition, method of producing same2020 10,274,643Plastic polarized lens and method of producing the same2019 9,845,373Polymerizable composition for photochromic optical materials2017 9,778,396'Polymerizable composition for optical material, optical material obtained from same composition, and plastic lens'2017 9,778,397'Polymerizable composition, optical material, and manufacturing method of the same'2017 9,605,103'Process for producing photochromic optical material'2017 9,529,118'Composition for optical material and use of same'2016 9,505,872'Polymerizable composition for optical material, optical material and method for producing optical material'2016 9,086,531'Plastic polarized lens, method for producing the same, and polarized film'2015 9,000,119'Polymerizable composition for optical material, optical material, and method for producing optical material'2015 8,455,610'Polythiourethane polymerizable composition and method for producing optical resin by using same'2013 8,434,866'Polymerizable composition for optical material, optical material, and method for preparing the optical material'2013 8,304,506'Polythiourethane-based polymerizable composition and optical resin obtained from the same'2012 8,222,366'Polythiourethane polymerizable composition and method for producing optical resin by using same'2012 8,187,712'Plastic polarized lens and method of producing the same'2012 7,932,327'Polyurethane/thiourethane-based optical resin and process for producing the same'2011 7,354,989'Thioepoxy based polymerizable composition and method for production thereof'2008 6,458,917'Polymerizable composition'2002 6,365,707'Polymerizable composition and process for producing optical resin comprising the same'2002 6,300,464'Polymerizable composition'2001 6,204,311'Polymerizable composition'2001 5,554,765'Bisimide compounds, polyimide resin composition prepared therefrom, and carbon fiber-reinforced polyimide resin composition'1996 5,457,154'Bisimide compounds, polyimide resin composition prepared therefrom, and carbon fiber-reinforced polyimide resin composition'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2002Based in Fukuoka, JP· patent location history

2001–2020Patents assigned to MITSUI CHEMICALS INC (22)· patent assignee history

2008–2020Based in Omuta, JP· patent location history

2011–2020Based in Arao, JP· patent location history

2012–2016Patents assigned to RYU AKINORI (8)· patent assignee history

2012–2016Patents assigned to KOBAYASHI SEIICHI (5)· patent assignee history

2012–2013Patents assigned to OKUMURA KUNIO (3)· patent assignee history

2012–2013Patents assigned to TANAKA MAMORU (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUI CHEMICALS INC	22	2001–2020
RYU AKINORIself	8	2012–2016
KOBAYASHI SEIICHI	5	2012–2016
OKUMURA KUNIO	3	2012–2013
TANAKA MAMORU	3	2012–2013

Locations

Location	Patents	Span
Arao, JP	14	2011–2020
Fukuoka, JP	6	1995–2002
Omuta, JP	4	2008–2020