Patents by Inventor Yoshinori Ohkura
Yoshinori Ohkura 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: 7134530Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes a first terminal having a wireless transmitting/receiving unit provided for at least one of the plurality of floors and a second terminal having a wireless transmitting/receiving unit associated with the car. A mobile terminal is provided which enables wireless transmitting/receiving of signals between at least the first and second terminals.Type: GrantFiled: December 12, 2005Date of Patent: November 14, 2006Assignee: Hitachi, Ltd.Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Publication number: 20060086573Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes a first terminal having a wireless transmitting/receiving unit provided for at least one of the plurality of floors and a second terminal having a wireless transmitting/receiving unit associated with the car. A mobile terminal is provided which enables wireless transmitting/receiving of signals between at least the first and second terminals.Type: ApplicationFiled: December 12, 2005Publication date: April 27, 2006Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Patent number: 6976561Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes terminals each having a wireless transmitting/receiving unit. One of the terminals is correspondingly provided for at least one of the plurality of floors and another of the terminals is correspondingly provided for the car and at least one of a counterweight. A mobile terminal is provided which enables wireless transmitting/receiving of signals between the terminals which are arranged within a predetermined distance of each other.Type: GrantFiled: July 10, 2003Date of Patent: December 20, 2005Assignee: Hitachi, Ltd.Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Patent number: 6728541Abstract: A plurality of radio relay stations 1 are connected so that bi-directional ring-like paths are made up of radio transmission paths. The respective radio relay stations 1 bidirectionally transmit data inputted from terminals placed thereunder onto the bidirectional ring-like paths respectively. The respective data are respectively received by radio relay stations 2 having data destination terminals placed thereunder along the bidirectional ring-like paths. Each radio relay station, which has received the data destined for the terminals placed thereunder from both directions, transmits earlier incoming data to each terminal placed thereunder and discards later incoming data. Thus, a radio relay system can be implemented which is capable of relaying data with a high degree of reliability.Type: GrantFiled: February 23, 2001Date of Patent: April 27, 2004Assignee: Hitachi, Ltd.Inventors: Yoshinori Ohkura, Masahiro Takahashi, Hideaki Masuko, Shinichi Ueda, Takuji Hamada
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Publication number: 20040007430Abstract: An elevator system in which a car travels upward and downward among a plurality of floors. The elevator system includes terminals each having a wireless transmitting/receiving unit. One of the terminals is correspondingly provided for at least one of the plurality of floors and another of the terminals is correspondingly provided for the car and at least one of a counterweight. A mobile terminal is provided which enables wireless transmitting/receiving of signals between the terminals which are arranged within a predetermined distance of each other.Type: ApplicationFiled: July 10, 2003Publication date: January 15, 2004Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Patent number: 6598710Abstract: An elevator system in which a car travels upward and downward among a plurality of floors includes an elevator control unit and terminals each having a wireless transmitting/receiving unit. The terminals are provided for the elevator control unit and for each of the floors. Transmitting/receiving of signals between two of the terminals distant from each other is effected so as to at least enable wireless bi-directional communication between the two of the terminals distant from each other by relaying signals through another wireless transmitting/receiving unit of another of the terminals.Type: GrantFiled: July 25, 2002Date of Patent: July 29, 2003Assignee: Hitachi, Ltd.Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Publication number: 20020189907Abstract: An elevator system in which a car travels upward and downward among a plurality of floors includes an elevator control unit and terminals each having a wireless transmitting/receiving unit. The terminals are provided for the elevator control unit and for each of the floors. Transmitting/receiving of signals between two of the terminals distant from each other is effected so as to at least enable wireless bi-directional communication between the two of the terminals distant from each other by relaying signals through another wireless transmitting/receiving unit of another of the terminals.Type: ApplicationFiled: July 25, 2002Publication date: December 19, 2002Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Patent number: 6446761Abstract: In order to make it possible to transmit and receive information between terminals and to reduce the number of wires used for an elevator in a building in an elevator system by transmitting and receiving information through wireless transmission even if a very weak radio wave having a narrow communicable range is used, an elevator control unit, a car terminal and floor terminals are individually provided with short distance wireless transmitting/receiving units having a communicable range of nearly a 2-floor distance (5 to 6 m) using very weak radio waves. The radio waves are received and transmitted between the wireless transmitting/receiving units located within the communicable range to transmit information by a relaying method of sequentially transferring information from terminal to terminal until it reaches a final destination.Type: GrantFiled: November 27, 2000Date of Patent: September 10, 2002Assignee: Hitachi, Ltd.Inventors: Nobuhisa Motoyama, Hiromi Inaba, Atsushi Kawabata, Yoshinori Ohkura, Kenichi Yamashita
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Publication number: 20020073411Abstract: A controller to which a plurality of apparatus can be connected has an apparatus discriminating unit for discriminating a type and/or the number of the apparatus connected to the controller. The controller further has an application discriminating unit for discriminating, based on the type and/or the number of the apparatuses discriminated by the apparatus discriminating unit, an application corresponding to the type and/or the number of the apparatuses.Type: ApplicationFiled: February 26, 2001Publication date: June 13, 2002Inventors: Kunihiko Tsunedomi, Shoji Suzuki, Tsutomu Yamada, Takanori Yokoyama, Masahiko Saito, Hidemitsu Naya, Satoru Funaki, Hiroshi Arita, Yoshinori Ohkura, Tetsuaki Nakamikawa
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Publication number: 20010018328Abstract: A plurality of radio relay stations 1 are connected so that bi-directional ring-like paths are made up of radio transmission paths. The respective radio relay stations 1 bidirectionally transmit data inputted from terminals placed thereunder onto the bidirectional ring-like paths respectively. The respective data are respectively received by radio relay stations 2 having data destination terminals placed thereunder along the bidirectional ring-like paths. Each radio relay station, which has received the data destined for the terminals placed thereunder from both directions, transmits earlier incoming data to each terminal placed thereunder and discards later incoming data.Type: ApplicationFiled: February 23, 2001Publication date: August 30, 2001Inventors: Yoshinori Ohkura, Masahiro Takahashi, Hideaki Masuko, Shinichi Ueda, Takuji Hamada
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Patent number: 5724350Abstract: A system for transmitting data in high precision by restricting a delay in data transmission time includes a hub. The hub receives through the transmission media a data frame transmitted from a communication device that has a transmission request among a plurality of communication devices, and relays the received data frame to a destination communication device based on a destination address included in the received data frame.Type: GrantFiled: June 12, 1995Date of Patent: March 3, 1998Assignee: Hitachi, Ltd.Inventors: Takuji Hamada, Norihiko Sugimoto, Kinshirou Oonishi, Shunji Inada, Yoshinori Ohkura, Katsuhiko Yoneda
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Patent number: 5657327Abstract: A system for transmitting data in high precision by restricting a delay in data transmission time, and including a hub. The hub receives through transmission media a data frame transmitted from a communication device that has a transmission request among a plurality of communication devices, and relays the received data frame to a destination communication device based on a destination address included in the received data frame.Type: GrantFiled: April 20, 1993Date of Patent: August 12, 1997Assignee: Hitachi, Ltd.Inventors: Takuji Hamada, Norihiko Sugimoto, Kinshirou Oonishi, Shunji Inada, Yoshinori Ohkura, Katsuhiko Yoneda
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Patent number: 5517669Abstract: A data communication system carries out transmission and reception of periodic data between a plurality of computers, and especially an improved data communication system which aims at more effective utilization of a system bus in each computer and which also aims at more effective utilization of a data transmission channel transmitting periodic data, so that the load imposed on the system bus during transfer of periodic data in each computer can be minimized, and the rate of occupation of the data transmission channel during transmission and reception of periodic data can also be minimized.Type: GrantFiled: March 16, 1994Date of Patent: May 14, 1996Assignee: Hitachi, Ltd.Inventors: Yoshinori Ohkura, Takuji Hamada, Shunji Inada, Shinichiro Yamaguchi, Hiroshi Tomizawa