Patents by Inventor Takayuki Nagatsuka
Takayuki Nagatsuka 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: 8044068Abstract: Disclosed is an aminopyrrolidine compound represented by the formula [I] or a pharmaceutically acceptable salt thereof. The compound or the salt is useful as a prophylactic/therapeutic agent for mode disorder such as depression, anxiety disorder, anorexia, cachexia, pain and drug dependence, whose action relies on the MC4 receptor antagonistic effect.Type: GrantFiled: March 30, 2007Date of Patent: October 25, 2011Assignees: Taisho Pharmaceutical Co., Ltd, Nissan Chemical Industries, Ltd.Inventors: Taketoshi Okubo, Toshihito Kumagai, Takaaki Ishii, Toshio Nakamura, Kumi Abe, Yuri Amada, Tomoko Ishizaka, Xiang-Min Sun, Yoshinori Sekiguchi, Shigetada Sasako, Takanori Shimizu, Takayuki Nagatsuka
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Patent number: 7781483Abstract: This invention relates to benzopyran compounds of formula (I) wherein X is NR6, Y is a bond, SO or SO2, Z is C1-4alkyl group or phenyl group, W is hydrogen atom, hydroxy group, C1-6 alkoxy group, a halogen atom, C1-4alkyl group or C1-6alkylsulfonylamino group, R1 and R2 are independently of each other C1-3alkyl group, R3 is hydrogen atom, hydroxy group or methoxy group, m is an integer of 0 to 4, n is an integer of 0 to 4, V is a single bond, CR7R8, NR9, O, S, SO or SO2, R4 is hydrogen atom or C1-6alkyl group, R5 is hydrogen atom, C1-6alkyl group, C3-8cycloalkyl group, C3-8cycloalkenyl group, C6-14aryl group or C2-9heteroaryl group. These compounds are useful as an anti-arrhythmic agent.Type: GrantFiled: February 25, 2005Date of Patent: August 24, 2010Assignee: Nissan Chemical Industries, Ltd.Inventors: Toru Tsukagoshi, Takayuki Nagatsuka, Tomoyuki Matsuda, Norio Hashimoto
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Patent number: 7689475Abstract: A manufacturer and retailer, which supply and sell articles such as business expendables or the like, stock articles in considerable quantities in their warehouses. However, such stocks are not always appropriate due to diversity of articles and difficulty in demand prediction, and articles cannot be delivered in a short term. A main server controls stock reserve of a branch warehouse on the basis of the check result of the urgency level of received order information, which is received from a user's information processing apparatus via a communication line, and the comparison result between the order quantity indicated by the received order information, and a non-reserved stock quantity.Type: GrantFiled: April 2, 2002Date of Patent: March 30, 2010Assignee: Canon Kabushiki KaishaInventors: Rikio Shiba, Takayuki Nagatsuka, Yukihiko Shimizu
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Publication number: 20090291940Abstract: Disclosed is an aminopyrrolidine compound represented by the formula [I] or a pharmaceutically acceptable salt thereof. The compound or the salt is useful as a prophylactic/therapeutic agent for mode disorder such as depression, anxiety disorder, anorexia, cachexia, pain and drug dependence, whose action relies on the MC4 receptor antagonistic effect.Type: ApplicationFiled: March 30, 2007Publication date: November 26, 2009Applicants: Taisho Pharmaceutical Co., Ltd., Nissan Chemical Industries, Ltd.Inventors: Taketoshi Okubo, Toshihito Kumagai, Takaaki Ishii, Toshio Nakamura, Kumi Abe, Yuri Amada, Tomoko Ishizaka, Xiang-Min Sun, Yoshinori Sekiguchi, Shigetada Sasako, Takanori Shimizu, Takayuki Nagatsuka
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Patent number: 7386603Abstract: Contents are distributed on the basis of information of a hobby and an address of the user and the like. The distribution of the contents is controlled also on the basis of a result of comparison of a reception intensity regarding contents of 3 or more levels set on the user side and a distribution intensity set as attributes into the contents on a distributing side.Type: GrantFiled: June 24, 2002Date of Patent: June 10, 2008Assignee: Canon Kabushiki KaishaInventors: Rikio Shiba, Katsuhiko Tanaka, Takayuki Nagatsuka, Yukihiko Shimizu
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Publication number: 20070299130Abstract: This invention relates to benzopyran compounds of formula (I) wherein X is NR6, Y is a bond, SO or SO2, Z is C1-4alkyl group or phenyl group, W is hydrogen atom, hydroxy group, C1-6 alkoxy group, a halogen atom, C1-4alkyl group or C1-6alkylsulfonylamino group, R1 and R2 are independently of each other C1-3alkyl group, R3 is hydrogen atom, hydroxy group or methoxy group, m is an integer of 0 to 4, n is an integer of 0 to 4, V is a single bond, CR7R8, NR9, O, S, SO or SO2, R4 is hydrogen atom or C1-6alkyl group, R5 is hydrogen atom, C1-6alkyl group, C3-8cycloalkyl group, C3-8cycloalkenyl group, C6-14aryl group or C2-9heteroaryl group. These compounds are useful as an anti-arrhythmic agent.Type: ApplicationFiled: February 25, 2005Publication date: December 27, 2007Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Toru Tsukagoshi, Takayuki Nagatsuka, Tomoyuki Matsuda, Norio Hashimoto
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Publication number: 20030018775Abstract: Contents are distributed on the basis of information of a hobby and an address of the user and the like. The distribution of the contents is controlled also on the basis of a result of comparison of a reception intensity regarding contents of 3 or more levels set on the user side and a distribution intensity set as attributes into the contents on a distributing side.Type: ApplicationFiled: June 24, 2002Publication date: January 23, 2003Inventors: Rikio Shiba, Katsuhiko Tanaka, Takayuki Nagatsuka, Yukihiko Shimizu
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Publication number: 20020147667Abstract: A manufacturer and retailer, which supply and sell articles such as business expendables or the like, stock articles in considerable quantities in their warehouses. However, such stocks are not always appropriate due to diversity of articles and difficulty in demand prediction, and articles cannot be delivered in a short term. A main server controls stock reserve of a branch warehouse on the basis of the check result of the urgency level of received order information, which is received from a user's information processing apparatus via a communication line, and the comparison result between the order quantity indicated by the received order information, and a non-reserved stock quantity.Type: ApplicationFiled: April 2, 2002Publication date: October 10, 2002Inventors: Rikio Shiba, Takayuki Nagatsuka, Yukihiko Shimizu
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Publication number: 20020055883Abstract: Collection methods of toner cartridges involve stores or manufactures dispatching recovery vehicles, users taking toner cartridges to stores, or users sending toner cartridges by packing them in special boxes, but all these methods are troublesome and costly. To deal with this situation, an ordering screen provided to the user who orders goods via an Internet contains an entry field for specifying whether to use a collection service for the goods to be ordered. When this field is filled in and the information as to whether to use the collection service is transmitted, a main server calculates expected collection quantities based on the transmitted information and then draws up collection plans based on the calculated information.Type: ApplicationFiled: October 15, 2001Publication date: May 9, 2002Inventors: Rikio Shiba, Takayuki Nagatsuka, Yukihiko Shimizu
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Publication number: 20020010611Abstract: On designated dates from customers for sales of articles, a collecting request of used items for recycling, or the like through the Internet, and a service is added and the designated dates from the customers are concentrated on a specific date, thereby enabling trucks for delivery or collection for recycling to be efficiently used.Type: ApplicationFiled: May 30, 2001Publication date: January 24, 2002Inventors: Yoshihisa Yamaji, Takayuki Nagatsuka, Yukihiko Shimizu, Rikio Shiba
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Patent number: 5972554Abstract: A toner for developing electrostatic images is formed of toner particles comprising a binder resin and a colorant, and inorganic fine powder. The toner further contains: a phenol-aldehyde condensate mixture comprising an acyclic condensate and a cyclic condensate, respectively, of a phenol compound with an aldehyde compound, and the phenol-aldehyde condensate mixture contains 10-80 mol % of condensate components having 4-6 phenolic units. The phenol-aldehyde condensate mixture may be contained in or externally added to the toner particles. Because of the inclusion of an acyclic condensate and appropriate amount of condensate components having 4-6 phenolic units, the phenol-aldehyde condensate mixture may exhibit a good dispersibility in the binder resin and a good charge control performance.Type: GrantFiled: April 22, 1998Date of Patent: October 26, 1999Assignee: Canon Kabushiki KaishaInventors: Takayuki Nagatsuka, Hirohide Tanikawa, Makoto Unno
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Patent number: 5582902Abstract: A laminate film suitable for providing a transparency for an OHP (overhead projector) is formed by disposing an absorbing layer on a substrate. The absorbing layer functions to allow addition of a wax component to a toner so as to improve the color mixing characteristic and anti-offset characteristic of the toner without causing a wax exudation trace which is liable to occur in a fixed toner image if the absorbing layer is not provided.Type: GrantFiled: November 4, 1993Date of Patent: December 10, 1996Assignee: Canon Kabushiki KaishaInventors: Makoto Kanbayashi, Takeshi Menjo, Takayuki Nagatsuka, Takashige Kasuya, Tatsuya Nakamura, Tatsuhiko Chiba, Kohji Inaba
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Patent number: 5558967Abstract: A toner and a two-component developer for developing electrostatic images are disclosed. The toner comprises toner particles and the two-component developer comprises the toner and a carrier. The toner particle has a two-layer structure of a core layer and a surface layer, produced by suspension polymerization. The core layer and surface layer are mainly comprised of a resin having a low softening point and a resin having a high softening point, respectively. In the surface layer, a polyester resin having a specific acid value and a specific molecular weight is included to impart an appropriate water absorption to the toner. Due to the appropriate water absorption and superior fluidity, the toner can achieve a speedy rise of charge to give electrostatic charges in a stable quantity over a long period of time, and it can give a high image density and images with superior fine-line reproduction and highlight reproduction.Type: GrantFiled: October 31, 1994Date of Patent: September 24, 1996Assignee: Canon Kabushiki KaishaInventors: Takayuki Nagatsuka, Takashige Kasuya, Tatsuya Nakamura, Makoto Kanbayashi, Tatsuhiko Chiba
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Patent number: 5508139Abstract: A magnetic toner for developing an electrostatic image is disclosed which has a binder resin, a magnetic material and an iron compound of the formula (I). The magnetic toner has a saturation magnetization of 20 to 50 Am.sup.2 /kg and a coercive force of 40 to 200 oersted.Type: GrantFiled: March 22, 1994Date of Patent: April 16, 1996Assignee: Canon Kabushiki KaishaInventors: Katsuhiko Tanaka, Takayuki Nagatsuka, Rika Doi
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Patent number: 5500321Abstract: A color toner for developing electrostatic images is formed of color toner particles each including a binder resin, a polyalkylene, and a colorant. The color toner particles are formed by suspension polymerization. The polyalkylene is characterized by having a crystallinity of 10-50% and a melting enthalpy (as measured by a differential scanning calorimeter) of at most 35 cal/g. The color toner is characterized by an improved fixability without causing offset especially at a relatively low temperature and suitable for providing a transparency film for an overhead projection.Type: GrantFiled: July 29, 1994Date of Patent: March 19, 1996Assignee: Canon Kabushiki KaishaInventors: Takashige Kasuya, Takayuki Nagatsuka, Tatsuya Nakamura, Makoto Kanbayashi, Tatsuhiko Chiba
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Patent number: 5476745Abstract: The present invention provides a process for producing a toner having little remaining polymerizable monomer in it by suspension polymerization. During the latter half of the polymerization reaction, the remaining polymerizable monomers and the aqueous medium are evaporated or removed while supplying the aqueous medium, saturated vapor of the aqueous medium, saturated vapor of a water-soluble solvent, or water-soluble gas to maintain the ratio of solid-liquid constant.Type: GrantFiled: January 27, 1995Date of Patent: December 19, 1995Assignee: Canon Kabushiki KaishaInventors: Tatsuya Nakamura, Ichiro Ohsaki, Takayuki Nagatsuka, Makoto Kanbayashi, Tatsuhiko Chiba
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Patent number: 5407776Abstract: A toner for developing an electrostatic image has toner particles.The toner particles are prepared by suspension polymerization and contain at least two components comprised of a high softening point resin-A and a low softening point material-B.The toner particles each have a structure separated into a phase-A mainly composed of the resin-A and a phase-B mainly composed of the material-B. The phase-B is absent in the vicinity of the toner particle surface, ranging from its surface to a depth 0.15 time a toner particle diameter.The toner particles contain an organic solvent, a polymerizable monomer or a mixture thereof in a quantity of not more than 1,000 ppm.Type: GrantFiled: August 25, 1994Date of Patent: April 18, 1995Assignee: Canon Kabushiki KaishaInventors: Makoto Kanbayashi, Takayuki Nagatsuka, Takashige Kasuya, Tatsuya Nakamura, Tatsuhiko Chiba
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Patent number: 5391450Abstract: A novel method for heat-pressure fixing color toner images in which:(1) a toner produced by suspension polymerization and containing a wax of a certain molecular weight and a certain melting point in a certain amount, wherein the wax is enclosed in each particle by a vinyl resin, and THF soluble matters having specific molecular weight distribution and is used in conjunction with(2) a fixing means comprising a fixing roller and a pressure roller in mutual pressure contact, through which the transfer medium comes out in the direction inclined toward the pressure roller, and wherein the surface of the fixing roller comprises a fluorine-containing material.Type: GrantFiled: April 22, 1994Date of Patent: February 21, 1995Assignee: Canon Kabushiki KaishaInventors: Takayuki Nagatsuka, Tatsuya Nakamura, Hiromi Mori, Takaaki Kohtaki
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Patent number: 5354639Abstract: A color toner for developing electrostatic images is formed of color toner particles each including a binder resin, a polyalkylene, and a colorant. The color toner particles are formed by suspension polymerization. The polyalkylene is characterized by having a crystallinity of 10-50% and a melting enthalpy (as measured by a differential scanning calorimeter) of at most 35 cal/g. The color toner is characterized by an improved fixability without causing offset especially at a relatively low temperature and suitable for providing a transparency film for an overhead projection.Type: GrantFiled: August 28, 1992Date of Patent: October 11, 1994Assignee: Canon Kabushiki KaishaInventors: Takashige Kasuya, Takayuki Nagatsuka, Tatsuya Nakamura, Makoto Kanbayashi, Tatsuhiko Chiba
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Patent number: 5354640Abstract: A toner for developing an electrostatic image has toner particles. The toner particles are prepared by suspension polymerization and contain at least two components comprised of a high softening point resin-A and a low softening point material-B. The toner particles each have a structure separated into a phase-A mainly composed of the resin-A and a phase-B mainly composed of the material-B. The phase-B is absent in the vicinity of the toner particle surface, ranging from its surface to a depth 0.15 time a toner particle diameter. The toner particles contain an organic solvent, a polymerizable monomer or a mixture thereof in a quantity of not more than 1,000 ppm.Type: GrantFiled: September 21, 1992Date of Patent: October 11, 1994Assignee: Canon Kabushiki KaishaInventors: Makoto Kanbayashi, Takayuki Nagatsuka, Takashige Kasuya, Tatsuya Nakamura, Tatsuhiko Chiba