Patents by Inventor Seiichi Okamoto

Seiichi Okamoto 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).

  • Publication number: 20220020568
    Abstract: A plasma processing apparatus is provided to perform plasma processing on a substrate. The plasma processing apparatus includes a processing chamber, a substrate support disposed in the processing chamber to place thereon the substrate, a grounded lower electrode provided in the substrate support, an upper electrode disposed to face the lower electrode, a gas supply unit to supply a processing gas to a space between the upper electrode and the substrate support, and a radio frequency power supply to apply RF power to the upper electrode to generate plasma of the processing gas. The plasma processing apparatus further includes a voltage waveform shaping unit provided between the RF power supply and the upper electrode to shape a voltage waveform of the RF power supply to suppress a positive voltage of the RF voltage applied to the upper electrode.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 20, 2022
    Inventors: Takahiro SHINDO, Seiichi OKAMOTO, Hiroshi OTOMO, Takamichi KIKUCHI, Tatsuo MATSUDO, Yasushi MORITA, Takashi SAKUMA
  • Patent number: 8330581
    Abstract: To provide an IC tag, a method of controlling the IC tag, and an IC tag system which can reduce a communication sequence between the reader/writer and the IC tag and can shorten a communication period or a period necessary for executing the command. According to an embodiment of the invention, an IC tag that executes a command processing based on a command received from a redder/writer, includes: a command analyzing unit determining an execution condition of the command received from the redder/writer; and a command execution unit executing a first command processing if the execution condition is met, and executing a second command processing different from the first command processing if the execution condition is not met.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: December 11, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino
  • Publication number: 20120194321
    Abstract: To provide an IC tag, a method of controlling the IC tag, and an IC tag system which can reduce a communication sequence between the reader/writer and the IC tag and can shorten a communication period or a period necessary for executing the command. According to an embodiment of the invention, an IC tag that executes a command processing based on a command received from a redder/writer, includes: a command analyzing unit determining an execution condition of the command received from the redder/writer; and a command execution unit executing a first command processing if the execution condition is met, and executing a second command processing different from the first command processing if the execution condition is not met.
    Type: Application
    Filed: April 9, 2012
    Publication date: August 2, 2012
    Inventors: Kazuhiro AKIYAMA, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino
  • Patent number: 8174365
    Abstract: To provide an IC tag, a method of controlling the IC tag, and an IC tag system which can reduce a communication sequence between the reader/writer and the IC tag and can shorten a communication period or a period necessary for executing the command. According to an embodiment of the invention, an IC tag that executes a command processing based on a command received from a redder/writer, includes: a command analyzing unit determining an execution condition of the command received from the redder/writer; and a command execution unit executing a first command processing if the execution condition is met, and executing a second command processing different from the first command processing if the execution condition is not met.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: May 8, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino
  • Patent number: 7889055
    Abstract: An IC tag according to an embodiment of the invention includes: a storage circuit having a plurality of memory cells; and a memory control circuit receiving commands by use of a radio signal to control the storage circuit based on the commands, the commands including a specific command to collectively control the plurality of memory cells, and the memory control circuit executing control corresponding to the specific command on the storage circuit based on the specific command and first key data received in association with the specific command.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: February 15, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino
  • Patent number: 7717349
    Abstract: A semiconductor device for an IC tag comprises a receive unit for demodulating receive data from a received RF signal and a signal processing unit for detecting a command comprising data signals from the receive data demodulated by the receive unit and executing processing based on the command, wherein the signal processing unit has a command acceptance mode for detecting the command from the receive data and a command execution mode for executing the command, and cancels the data signal when the data signal is detected from the receive data in the command execution mode.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: May 18, 2010
    Assignee: NEC Electronics Corporation
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Shigeki Kajimoto
  • Patent number: 7468668
    Abstract: A semiconductor device for an IC tag comprises a receive unit for demodulating receive data from a received RF signal and a signal processing unit for detecting a command comprising data signals from the receive data demodulated by the receive unit and executing processing based on the command, wherein the signal processing unit has a command acceptance mode for detecting the command from the receive data and a command execution mode for executing the command, and generates an error signal when the data signal is not detected from the receive data in the command acceptance mode.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: December 23, 2008
    Assignee: NEC Electronics Corporation
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Shigeki Kajimoto
  • Publication number: 20070069865
    Abstract: According to an embodiment of the invention, an IC tag for receiving a command data including a first command data not requiring the IC tag to send back response data and a second command data requiring the IC tag to send back the response data using a radio signal, including: a control circuit generating a confirmation signal indicating a reception condition of first command data; and a transmitter transmitting the confirmation signal.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Tetsuya Kawasaki, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Yuichi Sakurai, Tooru Miura
  • Publication number: 20070069860
    Abstract: An IC tag according to an embodiment of the invention includes: a storage circuit having a plurality of memory cells; and a memory control circuit receiving commands by use of a radio signal to control the storage circuit based on the commands, the commands including a specific command to collectively control the plurality of memory cells, and the memory control circuit executing control corresponding to the specific command on the storage circuit based on the specific command and first key data received in association with the specific command.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 29, 2007
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino
  • Publication number: 20070069863
    Abstract: To provide an IC tag, a method of controlling the IC tag, and an IC tag system which can reduce a communication sequence between the reader/writer and the IC tag and can shorten a communication period or a period necessary for executing the command. According to an embodiment of the invention, an IC tag that executes a command processing based on a command received from a redder/writer, includes: a command analyzing unit determining an execution condition of the command received from the redder/writer; and a command execution unit executing a first command processing if the execution condition is met, and executing a second command processing different from the first command processing if the execution condition is not met.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 29, 2007
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino
  • Publication number: 20060022804
    Abstract: A semiconductor device for an IC tag comprises a receive unit for demodulating receive data from a received RF signal and a signal processing unit for detecting a command comprising data signals from the receive data demodulated by the receive unit and executing processing based on the command, wherein the signal processing unit has a command acceptance mode for detecting the command from the receive data and a command execution mode for executing the command, and generates an error signal when the data signal is not detected from the receive data in the command acceptance mode.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Shigeki Kajimoto
  • Publication number: 20060022798
    Abstract: A communication system comprises an IC tag, and a reader/writer for performing radio communication with the IC tag. The reader/writer further comprises an encoding unit for encoding a digital signal having at least one bit and generating an encoded signal and a transmission unit for transmitting a modulated wave acquired by modulating a carrier based on the encoded signal during an acceptance period when the encoded signal is accepted in the IC tag, and transmitting the carrier to the IC tag during an execution period when the processing based on the encoded signal is executed in the IC tag. The IC tag further comprises a receive unit for receiving the modulated wave or the carrier transmitted from the reader/writer and a power supply voltage generation unit for generating the power supply voltage based on the received modulated wave or the carrier.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Shigeki Kajimoto
  • Publication number: 20060022803
    Abstract: A semiconductor device, comprises a receive circuit for generating receive data from received radio signals, a power supply voltage generation circuit for generating power supply voltage based on the received radio signals, a control circuit for performing logical processing based on the received data, a transmission circuit for generating radio signals including transmission data and transmitting the radio signals via an antenna and an oscillation circuit, which is operated using the power supply voltage generated by the power supply voltage generation circuit, for generating a predetermined frequency of clocks.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Shigeki Kajimoto
  • Publication number: 20060022058
    Abstract: A semiconductor device for an IC tag comprises a receive unit for demodulating receive data from a received RF signal and a signal processing unit for detecting a command comprising data signals from the receive data demodulated by the receive unit and executing processing based on the command, wherein the signal processing unit has a command acceptance mode for detecting the command from the receive data and a command execution mode for executing the command, and cancels the data signal when the data signal is detected from the receive data in the command execution mode.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventors: Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki, Tatsuya Uchino, Shigeki Kajimoto
  • Patent number: 6993357
    Abstract: In a mobile radio communication terminal includes a feeding controller 7 with a feeding control table. In the feeding control table 7 is stored the on/off state of the power to each circuit in correspondence with all operation modes for the apparatus. In case an operation mode is reported from the main control circuit 11 prior to the operation, output Vcc of the power supply circuit 6 is fed to the minimum circuits necessary for execution of the operation mode according to the operation mode and information stored in the feeding control table 7, and power to the remaining circuits is shut off or reduced.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: January 31, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Ito, Kentoku Yamaguchi, Seiichi Okamoto
  • Publication number: 20050121979
    Abstract: Battery packs with a plurality of rechargeable batteries connected in series so as to obtain a voltage required by a load device are detachably accommodated in a case. The battery packs are connected in parallel and each output thereof is modified to a predetermined voltage by a discharge control section. The battery packs are connected to a power source line of the load device. Each battery pack is connected through an information transmission line to a power source control section where charge and discharge thereof are controlled, as well as the lifetime is judged. Thus, only the lifetime-judged battery pack is replaced.
    Type: Application
    Filed: November 19, 2004
    Publication date: June 9, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Atsuo Matsumoto, Seiichi Okamoto, Ryoji Shigemoto, Masanori Hatabe
  • Publication number: 20020161703
    Abstract: In a control unit (100), a W-CDMA radio unit(102) is controlled and information on electronic money is loaded from an electronic money server managed and run by a bank or the like into an UIM card (114) via a W-CDMA communication network. Then, in the control unit (100), a BT radio unit (105) is controlled and an identification number of a commodity and electronic money information equivalent to the price of the commodity are transmitted to a vending machine with a BT communication function capable of conducting electronic commerce When mobile radio apparatus receives information on the acceptance of sale of the commodity from the vending machine, information on electronic money equivalent to the amount of user's dues may be subtracted from the UIM card (114). Therefore, it is possible to provide mobile radio apparatus that assures the user a great convenience in conducting electronic commerce.
    Type: Application
    Filed: August 27, 2001
    Publication date: October 31, 2002
    Inventors: Seiichi Okamoto, Keiji Uehara, Koichi Ito
  • Patent number: 5287814
    Abstract: A car body of railway rolling stock suitable for use for passenger cars or electric passenger cars and easy to fabricate at a low material cost. An underframe constituting the car body comprises a center underframe produced at light-alloy extruded shapes and an end underframe produced of a ferrous material, and a roof framing, a side framing and an end framing which constitute the car body are composed of outer plate members produced of a ferrous material and frame members produced of a ferrous material.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: February 22, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Kentaro Masai, Seiichi Okamoto, Sumio Okuno, Keiji Ohmura
  • Patent number: 5188039
    Abstract: This invention relates to a method of fixing an inside panel of a car, and its fixing structure. In a structure for fixing an inside panel by employing an interior decoration material to form a passenger room of a car, the present invention relates to a method and a structure for fixing an inside panel of a car, particularly suitable for a railway car. An inside frame which is press-formed is fixed to frames of a car, and an inside panel is fixed to the inside frame through fasteners. Since the inside panel is fixed to the press-formed inside frame, surface uneveness does not occur on the inside panel even if any unevenness exists on the frames of the car. A cushion material is attached to the inside frame at the joint portion of two inside panels along the joint portion. The inside panel has a decoration sheet bonded to its surface, and this decoration sheet is bent back at the edge portions of the inside panel. Therefore, the appearance of the joint portion can be improved.
    Type: Grant
    Filed: August 29, 1991
    Date of Patent: February 23, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Keiji Ohmura, Sumio Okuno, Kentaro Masai, Hideshi Ooba, Senzoo Hida, Seiichi Okamoto
  • Patent number: 5109777
    Abstract: A car body for railway rolling stock wherein a plurality of outside plates forming the car body are joined to frame members of the car body by spot welding. The outside plates are produced of a ferrous material except for stainless steel and a film or coating is provided on an outside surface of the outside plates. By virtue of the joining of the outside plates to the frame members and the joining of the outside plates to each other by spot welding, less input heat is required as compared with a continuous welding; therefore, outside plate distortion can be reduced and time and labor for manufacturing of the car body can be reduced. Moreover, since the outside plates are produced of a ferrous material, the painting of the outside surfaces of the outside plates can easily be accomplished.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: May 5, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Keiji Ohmura, Sumio Okuno, Michifumi Takeichi, Kentarou Masai, Seiichi Okamoto, Masatake Nakamura