Inventor
Masaya Kitayama
Inventor
Takarazuka, JP
Overview
Patents· 37 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds28%
C07DHeterocyclic compounds16%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments11%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
G03GElectrography7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
B29BPreparation or pretreatment of the material to be shaped2%
B29CShaping or joining of plastics2%
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. inserts2%
PatentTitleYear
7,608,371'Method of modifying liquid crystal polymers'20097,449,608'Naphthol derivative and charge control agent comprising the same'20087,355,071'Method for preparing 2,6-naphthalene dicarboxylic acid'20087,304,182'Crystalline parahydroxybenzoic acid anhydride and process for preparing the same'20077,238,769'Method for joining liquid-crystalline polyester resin composition parts and jointed article made of liquid-crystalline polyester resin composition'20077,179,401'Thermotropic liquid-crystalline polymer'20077,169,523'Charge controllers'20077,074,536'Alkylenebisnaphtol derivative and charge control agent which consists of the same'20067,030,261'Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene derivative'20066,984,712'Liquid-crystal polyester resin'20066,891,072'Process for production of dimers or aromatic monohydroxyl compounds'20056,849,742'Binaphthol derivative and process for producing the same'20056,802,989'Liquid crystal polyester resin'20046,673,962'Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the same'20046,664,341'Liquid-crystal polyester resin composition'20036,639,092'Metal salt of binaphthol derivative and method for preparing the same'20036,562,998'Granules of 2-hydroxynaphthalene-3-carboxylic acid and method for preparing the same'20036,548,703'Toning agent'20036,451,109'Columnar crystals of 6-hydroxy-2-naphthoic acid and process for manufacturing the same'20026,451,988'Naphthol derivatives'20026,409,812'AZO compounds and process for producing the same'20026,403,827'Crystal of 2-hydroxynaphthalene-3-carboxylic acid and process for the preparation thereof'20026,388,045'Liquid-crystalline polymer'20026,284,924'Compounds'20016,252,104'Naphthol derivatives and process for producing the same'20016,239,263'Water-soluble azo compounds and process for the preparation thereof'20016,194,608'Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acids'20016,133,475'Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid'20006,084,101'Naphtol derivative and process for producing the same'20006,072,042'Bis(aminocarbonylnaphthol) derivative'20006,020,470'Water-soluble azo compounds and process for producing the same'20006,005,085'Condensed azo compounds and process for preparing the same'19995,973,126'Azo compounds and process for producing the same'19995,965,715'Bisazo compounds and process for the preparation thereof'19995,847,233'Naphthol derivatives and process for producing the same'19985,786,523'Naphthol derivatives and process for producing the same'19985,770,766'Method for separating and purifying hydroxynaphtalenecarboxylic acids'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2008Patents assigned to UENO SEIYAKU OYO KENKYUJO KK (33)· patent assignee history
1998–2009Based in Takarazuka, JP· patent location history
1998–2001Based in Hyogo, JP· patent location history
2001Patents assigned to UENO SEIYAKU OYO KENKUJO KK (1)· patent assignee history
2003Patents assigned to UENO SEIYAKO OYO KENKYUJO KK (1)· patent assignee history
2003–2004Based in Takaraduka, JP· patent location history
2008Patents assigned to UENO FINE CHEMICAL IND (1)· patent assignee history
2009Patents assigned to LEF TECHNOLOGY INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UENO SEIYAKU OYO KENKYUJO KK | 33 | 1998–2008 |
| LEF TECHNOLOGY INC | 1 | 2009 |
| UENO FINE CHEMICAL IND | 1 | 2008 |
| UENO SEIYAKO OYO KENKYUJO KK | 1 | 2003 |
| UENO SEIYAKU OYO KENKUJO KK | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Takarazuka, JP | 32 | 1998–2009 |
| Hyogo, JP | 3 | 1998–2001 |
| Takaraduka, JP | 2 | 2003–2004 |