Patents by Inventor Shigeru Oda
Shigeru Oda 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: 7645396Abstract: In a thermal recording medium including a basic chromogenic dye, a developer and a sensitizer, a composition for a thermal recording medium which composition contains 50 ppm to 5.0 mass % of 1-(3-methylphenoxy)-2-(4-methylphenoxy)ethane and/or 1,2-bis(4-methylphenoxy)ethane in 1,2-bis(3-methylphenoxy)ethane is used as said sensitizer, whereby the 1,2-bis(3-methylphenoxy)ethane compound is remarkably improved in milling property in the preparation of the above sensitizer, and a thermal recording medium is provided without impairing the colorability, etc., such as thermal colorability.Type: GrantFiled: March 4, 2009Date of Patent: January 12, 2010Assignee: Sanko Co., Ltd.Inventor: Shigeru Oda
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Publication number: 20090233246Abstract: The invention provides a heat-sensitive recording material, which is highly sensitive, is almost free of staining on the background, and gives a recorded image excellent in stability during storage, by using a finely divided sensitizer dispersion excellent in shelf stability produced in a short time with high volumetric efficiency. The invention relates to a method of producing a sensitizer dispersion, which comprises emulsifying and finely dividing a heat-sensitive recording sensitizer by melting under heating in an aqueous emulsifying dispersant, and then crystallizing the finely divided emulsified dispersion under rapid cooling, wherein the sensitizer is at least one member selected from the group consisting of 1,2-bis(phenoxy)ethane, 1,2-bis(3-methylphenoxy)ethane, 1,2-bis(4-methylphenoxy)ethane, p-benzylbiphenyl, di-p-methylbenzyl oxalate, and ?-naphthyl benzyl ether.Type: ApplicationFiled: May 27, 2009Publication date: September 17, 2009Inventors: Shigeru Oda, Eiji Kawabata, Takaaki Mori, Tjang Kie Tan, Hiroshi Sumitomo, Yoshito Nakagawa
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Patent number: 7566682Abstract: In a thermal recording medium including a basic chromogenic dye, a developer and a sensitizer, a composition for a thermal recording medium which composition contains 50 ppm to 5.0 mass % of 1-(3-methylphenoxy)-2-(4-methylphenoxy)ethane and/or 1,2-bis(4-methylphenoxy)ethane in 1,2-bis(3-methylphenoxy)ethane is used as said sensitizer, whereby the 1,2-bis(3-methylphenoxy)ethane compound is remarkably improved in milling property in the preparation of the above sensitizer, and a thermal recording medium is provided without impairing the colorability, etc., such as thermal colorability.Type: GrantFiled: February 16, 2004Date of Patent: July 28, 2009Assignee: Sanko Co., LtdInventor: Shigeru Oda
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Patent number: 7557065Abstract: The invention provides a heat-sensitive recording material, which is highly sensitive, is almost free of staining on the background, and gives a recorded image excellent in stability during storage, by using a finely divided sensitizer dispersion excellent in shelf stability produced in a short time with high volumetric efficiency. The invention relates to a method of producing a sensitizer dispersion, which comprises emulsifying and finely dividing a heat-sensitive recording sensitizer by melting under heating in an aqueous emulsifying dispersant, and then crystallizing the finely divided emulsified dispersion under rapid cooling, wherein the sensitizer is at least one member selected from the group consisting of 1,2-bis(phenoxy)ethane, 1,2-bis(3-methylphenoxy)ethane, 1,2-bis(4-methylphenoxy)ethane, p-benzylbiphenyl, di-p-methylbenzyl oxalate, and ?-naphthyl benzyl ether.Type: GrantFiled: April 8, 2004Date of Patent: July 7, 2009Assignee: Sanko Co., Ltd.Inventors: Shigeru Oda, Eiji Kawabata, Takaaki Mori, Tjang Kie Tan, Hiroshi Sumitomo, Yoshito Nakagawa
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Publication number: 20090166594Abstract: In a thermal recording medium including a basic chromogenic dye, a developer and a sensitizer, a composition for a thermal recording medium which composition contains 50 ppm to 5.0 mass % of 1-(3-methylphenoxy)-2-(4-methylphenoxy)ethane and/or 1,2-bis(4-methylphenoxy)ethane in 1,2-bis(3-methylphenoxy)ethane is used as said sensitizer, whereby the 1,2-bis(3-methylphenoxy)ethane compound is remarkably improved in milling property in the preparation of the above sensitizer, and a thermal recording medium is provided without impairing the colorability, etc., such as thermal colorability.Type: ApplicationFiled: March 4, 2009Publication date: July 2, 2009Applicant: SANKO CO., LTD.Inventor: Shigeru ODA
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Publication number: 20070111887Abstract: In a thermal recording medium including a basic chromogenic dye, a developer and a sensitizer, a composition for a thermal recording medium which composition contains 50 ppm to 5.0 mass % of 1-(3-methylphenoxy)-2-(4-methylphenoxy)ethane and/or 1,2-bis(4-methylphenoxy)ethane in 1,2-bis(3-methylphenoxy)ethane is used as said sensitizer, whereby the 1,2-bis(3-methylphenoxy)ethane compound is remarkably improved in milling property in the preparation of the above sensitizer, and a thermal recording medium is provided without impairing the colorability, etc., such as thermal colorability.Type: ApplicationFiled: February 16, 2004Publication date: May 17, 2007Applicant: SANKO CO., LTD.Inventor: Shigeru Oda
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Publication number: 20060252645Abstract: The invention provides a heat-sensitive recording material, which is highly sensitive, is almost free of staining on the background, and gives a recorded image excellent in stability during storage, by using a finely divided sensitizer dispersion excellent in shelf stability produced in a short time with high volumetric efficiency. The invention relates to a method of producing a sensitizer dispersion, which comprises emulsifying and finely dividing a heat-sensitive recording sensitizer by melting under heating in an aqueous emulsifying dispersant, and then crystallizing the finely divided emulsified dispersion under rapid cooling, wherein the sensitizer is at least one member selected from the group consisting of 1,2-bis(phenoxy)ethane, 1,2-bis(3-methylphenoxy)ethane, 1,2-bis(4-methylphenoxy)ethane, p-benzylbiphenyl, di-p-methylbenzyl oxalate, and ?-naphthyl benzyl ether.Type: ApplicationFiled: April 8, 2004Publication date: November 9, 2006Inventors: Shigeru Oda, Eiji Kawabata, Takaaki Mori, Tjang Tan, Hiroshi Sumitomo, Yoshito Nakagawa
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Publication number: 20040043902Abstract: A heat-sensitive recording material which has a heat-sensitive recording layer formed on a surface of a substrate, the recording layer comprising a basic chromogenic dye precursor and a developer, wherein as the developer, there is used a mixture comprising 5 to 95 wt % of 2,2-dimethyl-1,3-bis(4-hydroxybenzoyloxy)propane and 95 to 5 wt % of 4,4′-hydroxydiphenyl sulfone.Type: ApplicationFiled: July 2, 2003Publication date: March 4, 2004Inventors: Shigeru Oda, Takaaki Mori
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Patent number: 6045152Abstract: An air-bag cover is formed of a thermoplastic elastomer composition of(a) 5-50% by weight of a hydrogenated block copolymer having a number-average molecular weight of 50000 or more obtained by hydrogenating a block copolymer comprising at least two terminal polymer blocks A mainly of a vinyl aromatic compound and at least one intermediate polymer block B mainly of a conjugated diene compound,(b) 20-60% by weight of a copolymer of propylene and an .alpha.-olefin of 2-8 carbon atoms having a heat distortion temperature of 90.degree. C. or higher,(c) 5-50% by weight of a paraffinic oil,5-70% by weight of (d) an ethylene-.alpha.-olefin copolymer rubber and/or an ethylene-.alpha.-olefin-non-conjugated diene copolymer rubber having a glass transition temperature of -30.degree. C. or lower and/or (e) a thermoplastic elastomer of a dynamically vulcanized blend of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin or a dynamically vulcanized blend of an ethylene-.alpha.Type: GrantFiled: August 26, 1997Date of Patent: April 4, 2000Assignee: Sumitomo Bakelite Company LimitedInventor: Shigeru Oda
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Patent number: 6040470Abstract: There is provided a developer composition including at least one of sulfonyl compounds represented by formula (1) and at least one of sulfonyl compounds represented by formula 2: ##STR1## wherein X is H or lower alkyl, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 which may be the same or different, present H, halogen or lower alkyl and Y represents alkyl, benzenesulfonyl, benzoyl et al, A thermalsensitive recording medium having the above developer is of high sensitivity, less surface-blushing with lapse of time and is excellent in storage stability of a recorded image, particularly in heat resistance, humidity resistance and anti-plasticizer.Type: GrantFiled: September 10, 1998Date of Patent: March 21, 2000Assignee: Sanko Kaihatsu Kagaku KenkyushoInventors: Shigeru Oda, Eiji Kawabata
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Patent number: 5840652Abstract: There is provided a developer composition including at least one of sulfonyl compounds represented by formula (1) and at least one of sulfonyl compounds represented by formula 2: ##STR1## wherein X is H or lower alkyl, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 which may be the same or different, present H, halogen or lower alkyl and Y represents alkyl, benzenesulfonyl, benzoyl et al, A thermalsensitive recording medium having the above developer is of high sensitivity, less surface-blushing with lapse of time and is excellent in storage stability of a recorded image, particularly in heat resistance, humidity resistance and anti-plasticizer.Type: GrantFiled: February 19, 1997Date of Patent: November 24, 1998Assignee: Sanko Kaihatsu Kagaku KenkyushoInventors: Shigeru Oda, Eiji Kawabata
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Patent number: 5705452Abstract: A thermal recording medium comprising a as a developer a sulfonyl compound represented by general formula (1) or a polyvalent metal salt thereof. ##STR1## where X represents H or a lower alkyl group, R.sub.1, R.sub.2 and R.sub.3 represent H, halogen atom, a hydroxyl group, a lower alkyl group or a cycloalkyl group, R.sub.4, R.sub.5 and R.sub.6 represent H, halogen atom, a lower alkyl group or a cycloalkyl group, and R.sub.7 represents H or ##STR2## where R.sub.4, R.sub.5 and R.sub.6 are as defined above. The thermal recording medium has a high sensitivity and a lower background blush during storage, and also has excellent stability against heating, moisture and plasticizer.Type: GrantFiled: October 11, 1995Date of Patent: January 6, 1998Assignee: Sanko Haihatsu Kagaku KenkyushoInventors: Toranosuke Saito, Shigeru Oda, Eiji Kawabata
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Patent number: 5328884Abstract: The present invention provides a color developer composition characterized in that the composition contains a color developer comprising as its main component a nucleus-substituted salicylic acid salt represented by the formula (1) given below, and at least one amide compound selected from the group consisting of the compounds of represented by the formula (2) and formula (3) given below. ##STR1## wherein R.sub.1 to R.sub.10 are as defined in the specification.Type: GrantFiled: March 8, 1993Date of Patent: July 12, 1994Assignees: Kanzaki Paper Manufacturing Co., Ltd., Sanko Kaihatsu Kagaku KenkyushoInventors: Masato Tanaka, Tomoharu Shiozaki, Shigeru Oda, Toranosuke Saito
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Patent number: 5250108Abstract: The present invention provides a color developer composition characterized in that the composition contains a color developer comprising as its main component a nucleus-substituted salicylic acid salt represented by the formula (1) given below, and at least one amide compound selected from the group consisting of the compounds of represented by the formula (2) and formula (3) given below. ##STR1## wherein R.sub.1 to R.sub.10 are as defined in the specification.Type: GrantFiled: April 1, 1991Date of Patent: October 5, 1993Assignees: Kanzaki Paper Manufacturing Co. Ltd., Sanko Kaihatsu Kagaku KenkyushoInventors: Masato Tanaka, Tomoharu Shiozaki, Shigeru Oda, Toranosuke Saito
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Patent number: 5248828Abstract: A method for preparing a sulfone represented by the following formula: ##STR1## wherein R' represents a lower alkyl group, an aryl group or an aryl group whose nucleus has at least one substituent selected from the group consisting of a halogen atom, nitro group, a lower alkyl group, phenyl group and a phenyl group substituted with a halogen atom, or an alkali metal salt thereof. A sulfonic acid ester of 4-hydroxybiphenyl is condensed at a temperature of 0.degree. to 200.degree. C. in a presence of a Lewis acid or a super-strong acid with a sulfonyl chloride represented by the formula R'SO.sub.2 Cl, wherein R' is the same as that defined above.Type: GrantFiled: June 10, 1992Date of Patent: September 28, 1993Assignee: Sanko Kaihatsu Kagaku KenkyushoInventors: Toranosuke Saito, Shigeru Oda, Hiroki Tsunomachi, Daishiro Kishimoto
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Patent number: 5235084Abstract: A method for preparing a sulfone represented by the following formula: ##STR1## wherein R and R' each represent a lower alkyl group, an aryl group or an aryl group whose nucleus has at least one substituent selected from the group consisting of a halogen atom, nitro group, a lower alkyl group, phenyl group and a phenyl group substituted with a halogen atom, comprises the step of condensing a sulfonic acid ester of 4-hydroxybiphenyl represented by the following formula: ##STR2## with a sulfonyl chloride of R'SO.sub.2 Cl at a temperature of 0.degree. to 200.degree. C. in the presence of a Lewis acid or a superstrong acid.Type: GrantFiled: April 7, 1992Date of Patent: August 10, 1993Assignee: Sanko Kaihatsu Kagaku KenkyushoInventors: Toranosuke Saito, Shigeru Oda, Hiroki Tsunomachi, Daishiro Kishimoto
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Patent number: 5204190Abstract: Herein disclosed are a method for preparing an aqueous developer dispersion which comprises the steps of dissolving, in an organic solvent, a developer which comprises a nuclear-substituted salicylic acid salt represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having not more than 15 carbon atoms, a cycloalkyl group, a phenyl group, a nuclear-substituted phenyl group, an aralkyl group or a nculear-substituted aralkyl group, or two adjacent groups selected from R.sub.1 to R.sub.Type: GrantFiled: June 29, 1992Date of Patent: April 20, 1993Assignees: Sanko Kaihatsu Kagaku Kenyusho, Kanzaki Paper Manufacturing Co., Ltd.Inventors: Toranosuke Saito, Shigeru Oda, Tomoharu Shiozaki, Masato Tanaka
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Patent number: 5164001Abstract: Herein disclosed are a method for preparing an aqueous developer dispersion which comprises the steps of dissolving, in an organic solvent, a developer which comprises a nuclear-substituted salicylic acid salt represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having not more than 15 carbon atoms, a cycloalkyl group, a phenyl group, a nuclear-substituted phenyl group, an aralkyl group or a nuclear-substituted aralkyl group, or two adjacent groups selected from R.sub.1 to R.sub.Type: GrantFiled: November 21, 1990Date of Patent: November 17, 1992Assignees: Sanko Kaihatsu Kagaku Kenkyusho, Kanzaki Paper Manufacturing Co., Ltd.Inventors: Toranosuke Saito, Shigeru Oda, Tomoharu Shiozaki, Masato Tanaka