Patents by Inventor Ryoichi Kinishi
Ryoichi Kinishi 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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Publication number: 20240109359Abstract: The purpose of the present disclosure is to improve the sensitivity of 4,4?-dihydroxydiphenylsulfone, which is a developer, in a heat-sensitive recording material. The present disclosure provides a heat-sensitive recording material that uses at least one selected from 1,2-bis(phenoxy)ethane, 1,2-bis(3-methylphenoxy)ethane, benzyloxynaphthalene, and oxalic acid di-p-methylbenzyl ester as a sensitizer for 4,4?-dihydroxydiphenylsulfone, and further includes benzoin as a sensitization aid.Type: ApplicationFiled: June 11, 2020Publication date: April 4, 2024Inventors: Yoshimi ISHIBASHI, Takamichi OISHI, Yoshitaka FUJINO, Ryoichi KINISHI
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Patent number: 11945769Abstract: The present invention relates to an N,N?-diurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N?-diurea derivative represented by the following general formula (1): (wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and A1 is a hydrogen atom or an alkyl group).Type: GrantFiled: August 10, 2018Date of Patent: April 2, 2024Assignee: SANKO CO., LTD.Inventors: Ryoichi Kinishi, Yoshimi Ishibashi
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Publication number: 20210340099Abstract: The present invention relates to an N,N?-diurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N?-diurea derivative represented by the following general formula (1): (wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and A1 is a hydrogen atom or an alkyl group).Type: ApplicationFiled: August 10, 2018Publication date: November 4, 2021Inventors: Ryoichi KINISHI, Yoshimi ISHIBASHI
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Patent number: 10086634Abstract: A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m . . . (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR? group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.Type: GrantFiled: September 13, 2016Date of Patent: October 2, 2018Assignee: SANKO CO., LTD.Inventors: Yoshimi Ishibashi, Ryoichi Kinishi, Yoshito Nakagawa
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Publication number: 20180194151Abstract: A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m??(1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR? group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.Type: ApplicationFiled: September 13, 2016Publication date: July 12, 2018Inventors: Yoshimi Ishibashi, Ryoichi Kinishi, Yoshito Nakagawa
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Patent number: 5661100Abstract: A thermal recording sheet wherein a compound of Formula (I) or (II) is contained in a thermal color developing layer including a basic colorless dye and an organic color developer as main ingredients: ##STR1## (wherein A denotes hydrogen atom, an alkyl group of C.sub.1 to C.sub.4, an alkoxy group of C.sub.1 to C.sub.4, hydroxy group, or nitro group. R.sub.1, R.sub.2, and R.sub.3 are hydrogen atom, an alkyl group of C.sub.1 to C.sub.4, an alkoxy group of C.sub.1 to C.sub.4, hydroxy group, or nitro group. R.sub.1 and R.sub.2 may combine with each other to form an aromatic ring. Y is sulfur or oxygen atom.), ##STR2## (wherein B denotes hydrogen atom, an alkyl group of C.sub.1 to C.sub.4, an alkoxy group of C.sub.1 to C.sub.4, hydroxy group, or nitro group. R.sub.1, R.sub.2, and R.sub.3 are hydrogen atom, an alkyl group of C.sub.1 to C.sub.4, an alkoxy group of C.sub.1 to C.sub.4, hydroxy group, or nitro group. R.sub.1 and R.sub.2 may combine with each other to form an aromatic ring. Y is sulfur or oxygen atom.).Type: GrantFiled: August 29, 1995Date of Patent: August 26, 1997Assignees: Nippon Paper Industries Co., Ltd., Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Toshiaki Minami, Tomoaki Nagai, Kaoru Hamada, Akio Sekine, Ryoichi Kinishi, Ryuzo Minakami
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Patent number: 5284978Abstract: A method of producing diphenyl sulfone compounds of the formula (I) ##STR1## wherein R is an alkyl having 1 to 8 carbon atoms, a cycloalkyl having 3 to 8 carbon atoms, an alkenyl having 2 to 8 carbon atoms or an arylalkyl which may have substituent(s) on the aromatic ring, comprising reacting 4,4'-dihydroxydiphenyl sulfone with a compound of the formulaR--Xwherein R is as defined above and X is halogen, characterized by conducting the reaction in 0.3-1.5 weight parts of an aqueous solvent per weight part of 4,4'-dihydroxydiphenyl sulfone in the presence of 1.5-3 moles of an alkali per mole of 4,4'-dihydroxydiphenyl sulfone. Since the method of the invention permits production of 4-substituted hydroxy-4'-hydroxydiphenyl sulfones, specifically 4-n-propoxy-4'-hydroxydiphenyl sulfone or 4-isopropoxy-4'-hydroxydiphenyl sulfone using an inexpensive solvent, with good selectivity and economical feasibility, they are industrially advantageous.Type: GrantFiled: March 22, 1993Date of Patent: February 8, 1994Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Ryoichi Kinishi, Yoshihiro Ozaki
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Patent number: 4950810Abstract: A selective process for preparing a 2,4- or 3,6-di-substituted phenol compound which comprises reacting an olefin compound of the formula: ##STR1## wherein R.sup.1 is hydrogen, halogen, alkyl, halogen substituted alkyl, aryl, halogen substituted-aryl or alkyl substituted-aryl; and R.sup.2, R.sup.3 and R.sup.4 are the same or different and each is hydrogen, halogen, alkyl, halogen substituted-alkyl or aralkyl; with a phenol compound of the formula: ##STR2## wherein R.sup.5 is hydrogen, hydroxy, halogen, alkyl, halogen substituted-alkyl, alkoxy or --C(R.sup.6)(R.sup.7)CH(R.sup.8)(R.sup.9) (wherein R.sup.6 is hydrogen, halogen, alkyl, halogen substituted-alkyl, aryl, halogen substituted-aryl or alkyl substituted-aryl; and R.sup.7, R.sup.8 and R.sup.9 are the same or different and each is hydrogen, halogen, alkyl, halogen substituted-alkyl or aralkyl), in the presence of a phosphorus compound and a carboxylic acid compound as catalysts.Type: GrantFiled: March 29, 1989Date of Patent: August 21, 1990Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Ryoichi Kinishi, Shuichi Wakamatsu, Tetsuji Ike
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Patent number: 4605940Abstract: There is provided a thermoresponsive paper sheet comprising a normally colorless or pale-colored chromogenic substance in combination with a phenolic compound and the underlying paper substrate, said sheet further comprises a diether of the formula: ##STR1## wherein R.sup.4 is alkyl of 1 to 5 carbon atoms, benzyl or phenethyl.Type: GrantFiled: September 11, 1984Date of Patent: August 12, 1986Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Ryoichi Kinishi, Eisaburo Kaku, Naoki Hanayama
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Patent number: 4558335Abstract: There is disclosed the use of benzyl 4-benzyloxybenzoate as a responsiveness-increasing agent in a thermoresponsive recording paper sheet comprising a normally colorless or pale-colored chromogenic substance in combination with a phenolic compound.Type: GrantFiled: March 11, 1982Date of Patent: December 10, 1985Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Naoki Hanayama, Eisaburo Kaku, Ryoichi Kinishi
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Patent number: 4404352Abstract: The use of catalytically effective amounts of a specific organotin compound and a specific amine compound in the production of polyurethanes by reacting an at least partially blocked isocyanate compound with an active hydrogen-containing compound significantly lowers the baking temperature and gives cured coatings with a smooth surface and good performance.Type: GrantFiled: August 4, 1982Date of Patent: September 13, 1983Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Koreyoshi Suenobu, Masanori Kohara, Yasuhiro Hidaka, Kazuki Katsuyama, Ryoichi Kinishi
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Patent number: 4322519Abstract: The use of a catalytic amount of a specific monoorganotin compound, namely a monoalkyltin oxide, a monocarboxylate thereof, a monoalkyltin sulfide or monophenyltin oxide, in producing polyurethanes by reacting under heating an at least partially blocked polyisocyanate and an active hydrogen-containing compound significantly lowers the baking temperature and gives cured coatings with a smooth surface and good performance.Type: GrantFiled: December 1, 1980Date of Patent: March 30, 1982Assignee: Yoshitomi Pharmaceutical Industries, Ltd.Inventors: Koreyoshi Suenobu, Masanori Kohara, Kazuki Katsuyama, Ryoichi Kinishi