Patents by Inventor Kazuhiro Teranishi
Kazuhiro Teranishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9643905Abstract: Phenylnaphthol derivatives represented by the following general formula (1), wherein, R1 to R3 are hydrogen atoms, alkyl groups or aryl groups, and R2 and R3 may be bonded together to form an aliphatic hydrocarbon ring or a heterocyclic ring, a and b are, respectively, integers of 0 to 4, R4 and R5 are hydroxyl groups, alkyl groups, haloalkyl groups, cycloalkyl groups, alkoxy groups, amino groups, heterocyclic groups having a nitrogen atom as a hetero atom and are bonded together via the nitrogen atom, cyano groups, nitro groups, formyl groups, hydroxycarbonyl groups, alkylcarbonyl groups, alkoxycarbonyl groups, halogen atoms, aralkyl groups, aralkoxy groups, aryloxy groups, aryl groups, heteroaryl groups bonded together via a carbon atom in the ring, alkylthio groups, cycloalkylthio groups, arylthio groups or heteroarylthio groups, and if R4 or R5 are present in a plural number, the plurality of R4 or the plurality of R5 may be the same or different, or 2 R4s or 2 R5s may be bonded together to form an alType: GrantFiled: June 25, 2014Date of Patent: May 9, 2017Assignee: TOKUYAMA CORPORATIONInventors: Shinobu Izumi, Kazuhiro Teranishi
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Patent number: 9487693Abstract: A chromene compound having a short fading half period, especially, a short fading half period even at a low temperature in a general-purpose polymer solid matrix. The chromene compound is represented by the following formula (1). wherein R1 is a hydroxyl group or the like, R2 and R3 are each an aryl group or the like, C* is a spiro carbon atom, a spiro ring A represented by the following formula is a saturated hydrocarbon ring having 4 to 12 ring member carbon atoms or the like, and at least one ring member carbon atom constituting the ring A is a group represented by the following formula (4), and X is a divalent group such as arylene group, wherein R7 and R8 are each a cycloalkyl group or the like.Type: GrantFiled: June 19, 2012Date of Patent: November 8, 2016Assignee: TOKUYAMA CORPORATIONInventors: Shinobu Izumi, Kazuhiro Teranishi, Yusuke Daikoku, Mitsuyoshi Sando
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Publication number: 20160130203Abstract: Phenylnaphthol derivatives represented by the following general formula (1), wherein, R1 to R3 are hydrogen atoms, alkyl groups or aryl groups, and R2 and R3 may be bonded together to form an aliphatic hydrocarbon ring or a heterocyclic ring, a and b are, respectively, integers of 0 to 4, R4 and R5 are hydroxyl groups, alkyl groups, haloalkyl groups, cycloalkyl groups, alkoxy groups, amino groups, heterocyclic groups having a nitrogen atom as a hetero atom and are bonded together via the nitrogen atom, cyano groups, nitro groups, formyl groups, hydroxycarbonyl groups, alkylcarbonyl groups, alkoxycarbonyl groups, halogen atoms, aralkyl groups, aralkoxy groups, aryloxy groups, aryl groups, heteroaryl groups bonded together via a carbon atom in the ring, alkylthio groups, cycloalkylthio groups, arylthio groups or heteroarylthio groups, and if R4 or R5 are present in a plural number, the plurality of R4 or the plurality of R5 may be the same or different, or 2 R4s or 2 R5s may be bonded together to form an alType: ApplicationFiled: June 25, 2014Publication date: May 12, 2016Applicant: TOKUYAMA CORPORATIONInventors: Shinobu IZUMI, Kazuhiro TERANISHI
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Patent number: 9316765Abstract: A photochromic composition functions as an adhesive layer for bonding optical sheets or films made from a polycarbonate resin or the like, and can be used to produce a laminated sheet that exhibits excellent adhesive properties, heat resistance, photochromic properties, and perspiration resistance. The photochromic composition includes (A) a polyurethane-urea resin having a urea bond in a molecular chain, in which a tetrahydrofuran insoluble content is 20.0 to 90.0 wt %; and (B) a photochromic compound.Type: GrantFiled: December 13, 2012Date of Patent: April 19, 2016Assignee: Tokuyama CorporationInventors: Katsuhiro Mori, Toshimitsu Hiraren, Yasutomo Shimizu, Kazuhiro Teranishi
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Publication number: 20140340727Abstract: A photochromic composition functions as an adhesive layer for bonding optical sheets or films made from a polycarbonate resin or the like, and can be used to produce a laminated sheet that exhibits excellent adhesive properties, heat resistance, photochromic properties, and perspiration resistance. The photochromic composition includes (A) a polyurethane-urea resin having a urea bond in a molecular chain, in which a tetrahydrofuran insoluble content is 20.0 to 90.0 wt %; and (B) a photochromic compound.Type: ApplicationFiled: December 13, 2012Publication date: November 20, 2014Applicant: Tokuyama CorporationInventors: Katsuhiro Mori, Toshimitsu Hiraren, Yasutomo Shimizu, Kazuhiro Teranishi
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Patent number: 8778236Abstract: A novel photochromic compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability. The present invention is a chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as the basic skeleton in which a hetero ring having two hetero atoms including at least one sulfur atom is directly bonded to the 6-position and the 7-position of the indeno(2,1-f)naphtho(1,2-b)pyran structure via the hetero atom like the compound represented by the following formula (18).Type: GrantFiled: March 7, 2012Date of Patent: July 15, 2014Assignee: Tokuyama CorporationInventors: Junji Takenaka, Junji Momoda, Kazuhiro Teranishi, Toshiaki Takahashi, Mitsuyoshi Sando, Shinobu Izumi
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Publication number: 20140154527Abstract: A chromene compound having a short fading half period, especially, a short fading half period even at a low temperature in a general-purpose polymer solid matrix. The chromene compound is represented by the following formula (1). wherein R1 is a hydroxyl group or the like, R2 and R3 are each an aryl group or the like, C* is a spiro carbon atom, a spiro ring A represented by the following formula is a saturated hydrocarbon ring having 4 to 12 ring member carbon atoms or the like, and at least one ring member carbon atom constituting the ring A is a group represented by the following formula (4), and X is a divalent group such as arylene group, wherein R7 and R8 are each a cycloalkyl group or the like.Type: ApplicationFiled: June 19, 2012Publication date: June 5, 2014Applicant: TOKUYAMA CORPORATIONInventors: Shinobu Izumi, Kazuhiro Teranishi, Yusuke Daikoku, Mitsuyoshi Sando
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Patent number: 8709308Abstract: The chromene compound is represented by the following formula (I), wherein R3 at the 11-position is a sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group, heteroarylthio group, sulfonyl group and sulfinyl group, R1 and R2 at the 6-position and the 7-position are a combination of an aryl group or a heteroaryl group and an electron donating group having a Hammett constant ?p of ?0.1 or less, or R1 and/or R2 is sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.Type: GrantFiled: January 26, 2012Date of Patent: April 29, 2014Assignee: Tokuyama CorporationInventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Kazuhiro Teranishi, Mitsuyoshi Sando, Shinobu Izumi
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Patent number: 8691120Abstract: A photochromic chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as its basic skeleton, an aryl group or a heteroaryl group at the 6-position carbon atom of the structure and an electron donor group having a Hammett constant ?p of not more than ?0.1 at the 7-position carbon atom.Type: GrantFiled: September 15, 2010Date of Patent: April 8, 2014Assignee: Tokuyama CorporationInventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Mitsuyoshi Sando, Kazuhiro Teranishi
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Publication number: 20140054520Abstract: A novel photochromic compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability. The present invention is a chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as the basic skeleton in which a hetero ring having two hetero atoms including at least one sulfur atom is directly bonded to the 6-position and the 7-position of the indeno(2,1-f)naphtho(1,2-b)pyran structure via the hetero atom like the compound represented by the following formula (18).Type: ApplicationFiled: March 7, 2012Publication date: February 27, 2014Applicant: TOKUYAMA CORPORATIONInventors: Junji Takenaka, Junji Momoda, Kazuhiro Teranishi, Toshiaki Takahashi, Mitsuyoshi Sando, Shinobu Izumi
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Publication number: 20140034884Abstract: A chromene compound which develops a color of a neutral tint and has little initial coloration, high double peak characteristic and high color development sensitivity, rarely experiences the reduction of color optical density though it has high fading speed, is excellent in the durability of photochromic properties and can dissolve in a monomer composition which will become a substrate for optical articles in a high concentration, and a photochromic curable composition comprising the chromene compound and polymerizable monomers. The chromene compound is represented by the following formula (1).Type: ApplicationFiled: January 26, 2012Publication date: February 6, 2014Applicant: TOKUYAMA CORPORATIONInventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Kazuhiro Teranishi, Mitsuyoshi Sando, Shinobu Izumi
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Publication number: 20140030529Abstract: A chromene compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability and a photochromic curable composition comprising the chromene compound and polymerizable monomers. The chromene compound is represented by the following formula (1). (wherein R1 is an aryl group or heteroaryl group, and R2 is a sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.Type: ApplicationFiled: January 25, 2012Publication date: January 30, 2014Applicant: TOKUYAMA CORPORATIONInventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Kazuhiro Teranishi, Shinobu Izumi
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Patent number: 8308996Abstract: A photochromic chromene compound which develops a color of a neutral tint, has high color optical density, a high fading speed and high durability, and has an indeno(2,1-f)naphtho(1,2-b)pyran structure represented by the following formula as the basic skeleton, wherein a sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group is bonded to the 6-position and/or 7-position carbon atom(s).Type: GrantFiled: August 4, 2010Date of Patent: November 13, 2012Assignee: Tokuyama CorporationInventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Kazuhiro Teranishi
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Publication number: 20120170098Abstract: A photochromic chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as its basic skeleton, an aryl group or a heteroaryl group at the 6-position carbon atom of the structure and an electron donor group having a Hammett constant ?p of not more than ?0.1 at the 7-position carbon atom.Type: ApplicationFiled: September 15, 2010Publication date: July 5, 2012Inventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Mitsuyoshi Sando, Kazuhiro Teranishi
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Publication number: 20120145974Abstract: A chromene compound which contains a skeleton represented by the following formula (1) and has high color optical density at the time of exposure, double peak characteristic, little initial coloration, a practical fading speed and durability. (wherein R1 is an electron donor group having a Hammett constant of less than 0, the ring including X is a hetero ring formed together with the 7-position and 8-position carbon atoms, and X is an oxygen atom, sulfur atom or group represented by ?NR2 directly bonded to the 7-position carbon atom.Type: ApplicationFiled: June 22, 2010Publication date: June 14, 2012Inventors: Toshiaki Takahashi, Junji Takenaka, Kazuhiro Teranishi
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Publication number: 20120121934Abstract: A photochromic chromene compound which develops a color of a neutral tint, has high color optical density, a high fading speed and high durability, and has an indeno(2,1-f)naphtho(1,2-b)pyran structure represented by the following formula as the basic skeleton, wherein a sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group is bonded to the 6-position and/or 7-position carbon atom(s).Type: ApplicationFiled: August 4, 2010Publication date: May 17, 2012Inventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Kazuhiro Teranishi