Patents by Inventor Tohru Kikuchi
Tohru Kikuchi 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: 9495799Abstract: An image generation system includes a vertex split count setting section that performs a vertex split count setting process that sets a vertex split count m, a vertex split processing section that performs a vertex split process on a three-dimensional object OB in an object space using the vertex split count m, a vertex position calculation section that calculates an intersection position of a projection screen SC and a straight line that connects a vertex position of the three-dimensional object OB after the vertex split process and a position of a virtual camera VC, and calculates a vertex position of a drawing object corresponding to the three-dimensional object OB on a drawing buffer based on the calculated intersection position, and a drawing section that draws the drawing object on the drawing buffer based on the vertex position of the drawing object to generate a projection image.Type: GrantFiled: March 26, 2014Date of Patent: November 15, 2016Assignee: BANDAI NAMCO ENTERTAINMENT INC.Inventors: Jun Nagase, Takahiro Kakizawa, Motonaga Ishii, Tohru Kikuchi
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Publication number: 20140292755Abstract: An image generation system includes a vertex split count setting section that performs a vertex split count setting process that sets a vertex split count m, a vertex split processing section that performs a vertex split process on a three-dimensional object OB in an object space using the vertex split count m, a vertex position calculation section that calculates an intersection position of a projection screen SC and a straight line that connects a vertex position of the three-dimensional object OB after the vertex split process and a position of a virtual camera VC, and calculates a vertex position of a drawing object corresponding to the three-dimensional object OB on a drawing buffer based on the calculated intersection position, and a drawing section that draws the drawing object on the drawing buffer based on the vertex position of the drawing object to generate a projection image.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: NAMCO BANDAI GAMES INC.Inventors: Jun NAGASE, Takahiro KAKIZAWA, Motonaga ISHII, Tohru KIKUCHI
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Patent number: 8813888Abstract: An IPU protection guard includes a pair of left and right upper horizontal members, which extend along a forward and rearward direction on an upper portion of an IPU on both sides in a vehicle width direction of the IPU, a pair of left and right lower horizontal members, which extend along the forward and rearward direction on a lower portion of the IPU on both sides in the vehicle width direction of the IPU, and an X-shaped member which extends in an X shape along a rear surface of the IPU.Type: GrantFiled: January 28, 2013Date of Patent: August 26, 2014Assignee: Honda Motor Co., Ltd.Inventors: Masayuki Ogawa, Takenobu Haga, Tohru Kikuchi, Junichi Kojima, Masanori Kisaku, Takashi Katou, Yoshihiro Kobayashi, Itsuo Kimura, Kazutaka Kanezashi, Keiichiro Okuyama
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Patent number: 8594001Abstract: A packet communication system for packet communication between a base station and plural mobile stations is provided. The system includes: a base station including a reception quality obtaining unit which obtains reception quality of uplink signals or reception quality of downlink signals, location information obtaining unit which obtains location information of a mobile station, a location information data base in which certainty is registered as weighting coefficient, where the certainty of reception quality is obtained from combination of the prescribed location within moving range of a mobile station and propagation environment for the location, and a mobile station selection unit which selects a mobile station intended to transmit or receive signals based on a result of multiplying reception quality obtained by reception quality obtaining unit, by weighting coefficient corresponding to location information of a mobile station which is obtained from the location information data base.Type: GrantFiled: June 29, 2007Date of Patent: November 26, 2013Assignee: NEC CorporationInventor: Tohru Kikuchi
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Publication number: 20130257857Abstract: An image projected onto a screen from a projector is generated as follows. Specifically, two virtual viewpoints that correspond to the right eye and the left eye of a viewer are set in a virtual three-dimensional space, and two virtual planes are set to be circumscribed to the screen (plane of projection). A plane image is generated by perspective projection transformation of a game space onto the virtual plane based on each virtual viewpoint. A projection image is generated from each plane image according to the relationship between the pixel position of the virtual plane and the pixel position of the projection image that is defined so that the plane image is observed without distortion when observing the screen from a presumed viewing position to generate a right-eye projection image and a left-eye projection image.Type: ApplicationFiled: February 28, 2013Publication date: October 3, 2013Applicant: NAMCO BANDAI GAMES INC.Inventors: Takahiro KAKIZAWA, Masayuki SHIRAKO, Tohru HISANO, Tohru KIKUCHI, Motonaga ISHII, Shinobu NIMURA
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Publication number: 20080242243Abstract: To provide a base station capable of selecting an optimum beam from among transmitted ones of multi-beams. In the arrangement, a beam power determining part (4) determines M received signal powers of multi-beams, and a beam output selecting part (5) selects, based on the information of the received powers from the beam power determining part (4), a beam of the largest power from among M outputs of beam formers (31-3M), and receives the selected beam. A transmission weight generating part (6) selects, based on the received information, a beam corresponding to the signal of a spread code selected by a mobile station and also selects another any beam to notify their respective transmission weighting coefficients. A transmitted beam forming part (7) weights transmitted data corresponding to transmission array antenna elements (91-9N) with the transmission weighting coefficients.Type: ApplicationFiled: January 18, 2005Publication date: October 2, 2008Inventor: Tohru Kikuchi
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Publication number: 20080031170Abstract: The packet communication system according to the present invention is a packet communication system for packet communication between a base station and plural mobile stations, a base station is characterized by including reception quality obtaining unit which obtains reception quality of uplink signals (signals in the direction from a mobile station to a base station) or reception quality of downlink signals (signals in the direction from a base station to a mobile station), location information obtaining unit which obtains location information of a mobile station, a location information data base in which certainty is registered as weighting coefficient, the certainty of reception quality being obtained from combination of the prescribed location within moving range of a mobile station and propagation environment for the location, and mobile station selection unit which selects a mobile station intended to transmit or receive signals based on a result of multiplying reception quality obtained by receptionType: ApplicationFiled: June 29, 2007Publication date: February 7, 2008Applicant: NEC CORPORATIONInventor: Tohru KIKUCHI
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Patent number: 7233283Abstract: A directional antenna control device is provided which is capable of reducing processing amount and time necessary for power detection and selection of multibeam. A beam power detecting part detects power levels of all M beams in unit time period for initial beam switching. A beam output selection combining part selects a beam having the largest power in accordance with the detected power levels, and outputs received data based on the selected beam. A detection beam selecting part notifies the beam power detecting part in unit time period for second beam switching, of beam numbers of the selected beam, m beams adjacent thereto and n beams out of all beams except for the selected beam and m beams. The beam power detecting part detects power levels of only the beams having the notified beam numbers.Type: GrantFiled: January 20, 2004Date of Patent: June 19, 2007Assignee: NEC CorporationInventor: Tohru Kikuchi
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Publication number: 20040147290Abstract: A directional antenna control device is provided which is capable of reducing processing amount and time necessary for power detection and selection of multibeam. A beam power detecting part detects power levels of all M beams in unit time period for initial beam switching. A beam output selection combining part selects a beam having the largest power in accordance with the detected power levels, and outputs received data based on the selected beam. A detection beam selecting part notifies the beam power detecting part in unit time period for second beam switching, of beam numbers of the selected beam, m beams adjacent thereto and n beams out of all beams except for the selected beam and m beams. The beam power detecting part detects power levels of only the beams having the notified beam numbers.Type: ApplicationFiled: January 20, 2004Publication date: July 29, 2004Inventor: Tohru Kikuchi
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Image display device, image displaying method, information storage medium, and image display program
Publication number: 20030011535Abstract: A perspective projection conversion is performed on a 3-dimensional object onto a plurality of virtual planes. After image information corresponding to each plane is stored in a flat buffer, the image information is read from the flat buffer for each of a plurality of sectioned areas forming each of a plurality of planes, and stored in a corresponding area in a frame buffer, and the image corresponding to the image information stored in the frame buffer is projected onto a curved surface screen through a wide-angle lens, thus disclosing the image display device.Type: ApplicationFiled: June 5, 2002Publication date: January 16, 2003Inventors: Tohru Kikuchi, Minoru Nagahori -
Patent number: 6433738Abstract: In a transmission antenna directivity control apparatus, a reception multi-beam generation section executes weights and combines reception signals from reception array antenna elements using a preset weight coefficient to generate reception multi-beams. A transmission weight coefficient generation section generates, in accordance with detection powers of the reception multi-beams, a transmission weight coefficient for transmission data in correspondence with each of transmission multi-beams corresponding to transmission array antenna elements. A transmission multi-beam generation section multiplies the transmission data by the transmission weight coefficient to generate the transmission multi-beams and supplies them to the corresponding transmission array antenna elements.Type: GrantFiled: October 19, 2001Date of Patent: August 13, 2002Assignee: NEC CorporationInventor: Tohru Kikuchi
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Publication number: 20020070892Abstract: In a transmission antenna directivity control apparatus, a reception multi-beam generation section executes weights and combines reception signals from reception array antenna elements using a preset weight coefficient to generate reception multi-beams. A transmission weight coefficient generation section generates, in accordance with detection powers of the reception multi-beams, a transmission weight coefficient for transmission data in correspondence with each of transmission multi-beams corresponding to transmission array antenna elements. A transmission multi-beam generation section multiplies the transmission data by the transmission weight coefficient to generate the transmission multi-beams and supplies them to the corresponding transmission array antenna elements.Type: ApplicationFiled: October 19, 2001Publication date: June 13, 2002Inventor: Tohru Kikuchi
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Patent number: 6289202Abstract: An optimal channel is selected in correspondence with the radio environment of the setting place of a system. A plurality of channels are divided into a plurality of groups, and a communication is performed using a channel in a group selected according to the radio environment. Since channels in the group are selected to be free from intermodulation, even when a plurality of communications are simultaneously performed in the system, the communication using one channel can be prevented from influencing that using another channel.Type: GrantFiled: July 29, 1996Date of Patent: September 11, 2001Assignee: Canon Kabushiki KaishaInventor: Tohru Kikuchi
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Patent number: 5350811Abstract: An adhesive composition comprising (a) an epoxy resin obtained by reacting a 1,3-bis(dicarboxyphenyl)-1,1,3,3-tetrasubstituted disiloxane dianhydride with an alcohol or alcohol derivative, followed by reaction with an epoxy compound having two or more epoxy groups, or an epoxy resin obtained by reacting a 1,3-bis(dicarboxyphenyl)-1,1,3,3-tetrasubstituted disiloxane with an epoxy compound having two or more epoxy groups and (b) a curing agent is suitable for bonding semiconductor chips to a copper frame with a small warpage of the chips.Type: GrantFiled: June 17, 1993Date of Patent: September 27, 1994Assignee: Hitachi Chemical Co. Ltd.Inventors: Nobuo Ichimura, Mitsuo Yamazaki, Kohei Fujita, Hidetaka Satou, Yasuo Miyamoto, Masao Kawasumi, Tohru Kikuchi
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Patent number: 5262277Abstract: A photosensitive resin composition comprising (A) a polymer obtained by reacting an isocyanate compound having an ethylenic unsaturated group with a polymer which is a reaction product of a tetracarboxylic acid dianhydride and a diamine, and (B) a photoinitiator, can provide a thick film excellent in heat resistant, adhesiveness, flexibility, electrical and mechanical properties, and is particularly suitable for producing a photosensitive element.Type: GrantFiled: January 22, 1992Date of Patent: November 16, 1993Assignee: Hitachi Chemical Company, Inc.Inventors: Kuniaki Sato, Yasunori Kojima, Shigeo Tachiki, Tohru Kikuchi, Toshiaki Ishimaru, Nobuyuki Hayashi, Mitsumasa Kojima
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Patent number: 5258139Abstract: An adhesive composition comprising (a) an epoxy resin obtained by reacting a 1,3-bis(dicarboxyphenyl)-1,1,3,3-tetrasubustituted disiloxane dianhydride with an alcohol or alcohol derivative, followed by reaction with an epoxy compound having two or more epoxy groups, or an epoxy resin obtained by reacting a 1,3-bis(dicarboxyphenyl)-1,1,3,3-tetrasubstituted disiloxane with an epoxy compound having two or more epoxy groups and (b) a curing agent is suitable for bonding semiconductor chips to a copper frame with a small warpage of the chips.Type: GrantFiled: April 19, 1991Date of Patent: November 2, 1993Assignee: Hitachi Chemical Company, Ltd.Inventors: Nobuo Ichimura, Mitsuo Yamazaki, Kohei Fujita, Hidetaka Satou, Yasuo Miyamoto, Masao Kawasumi, Tohru Kikuchi
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Patent number: 5242917Abstract: 1-(2,3-Dicarboxyphenyl)-3-(3,4-dicarboxyphenyl)-1,1,3,3-tetramethyldisiloxa ne dianhydride is useful as a curing agent for epoxy resins.Type: GrantFiled: March 13, 1991Date of Patent: September 7, 1993Assignee: Hitachi Chemical Company, Ltd.Inventors: Tohru Kikuchi, Koichi Kamijima, Takayuki Saito
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Patent number: 5166363Abstract: A process for producing (i) a 1,3-bis(dicarboxyphenyl)disiloxane derivative represented by the general formula ##STR1## wherein Rs and R's independently of one another denote methyl or phenyl or (ii) a 1,3-bis(dicarboxyphenyl)-disiloxane derivative dianhydride represented by the general formula ##STR2## wherein Rs and R's are as defined above, the process comprising coupling a Grignard reagent of halo-o-xylene with a disubstituted halosilane represented by the general formula ##STR3## wherein R and R' are as defined above and X denotes halogen, to form a dimethylphenyl(disubstituted silane) represented by the general formula ##STR4## wherein R and R' are as defined above, hydroxylating the dimethylphenyl(disubstituted silane) to form a dimethylphenyl(disubstituted hydroxysilane) represented by the general formula ##STR5## wherein R and R' are as defined above, to form a 1,3-bis(dimethylphenyl)-disilanedehydrating-condensing the dimethylphenyl-(disubstituted hydroxysilane derivative represented by the generalType: GrantFiled: December 9, 1991Date of Patent: November 24, 1992Assignee: Hitachi Chemical Company, Ltd.Inventors: Tohru Kikuchi, Toshiyuki Fujita, Koichi Kamijima, Takayuki Saito
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Patent number: 5164816Abstract: An integrated circuit device wherein layer insulation is attained by at least one of (i) an insulator layer interposed between two adjacent conductor layers, and (ii) a surface protecting layer fixedly covering the surface of the semiconductor chip, each of the insulator layer and the surface protecting layer being made of a heat-resistant resin obtainable by heating a heat-resistant resin paste. Said paste consists essentially of a first organic liquid, a second organic liquid, a heat-resistant resin (B) which is soluble in an organic liquid mixture consisting of the first organic liquid and the second organic liquid, and fine particles of a heat-resistant resin (C) which is soluble in the first organic liquid but insoluble in the second organic liquid. The first organic liquid, the second organic liquid and the heat-resistant resin (B) are brought into a solution in which the fine particles of a heat-resistant resin (C) are dispersed.Type: GrantFiled: August 2, 1991Date of Patent: November 17, 1992Assignee: Hitachi Chemical Co., Ltd.Inventors: Hiroshi Nishizawa, Kenji Suzuki, Yoshiyuki Mukoyama, Tohru Kikuchi, Hidetaka Sato
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Patent number: 5102962Abstract: A phenolic polymer obtained by reacting a phenolic compound with a bis(hydroxyalkyl)benzene, followed by alkylation of ortho positions or para position with respect to the hydroxyl group of the terminal phenol groups of the produced polymer is suitable for use as a heat resistant antioxidant for thermoplastic resins.Type: GrantFiled: March 27, 1990Date of Patent: April 7, 1992Assignee: Hitachi Chemical Company, Ltd.Inventors: Tohru Kikuchi, Hiroyuki Kawakami, Takayuki Saito