Patents by Inventor Masaaki Yano

Masaaki Yano 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).

  • Patent number: 11428178
    Abstract: A fuel vapor treating apparatus includes a canister, a purge pipe, a purge control valve, and a heating device. The canister is configured to store fuel vapor generated in a fuel tank. The purge pipe is configured to deliver the fuel vapor stored in the canister to an intake passage of an internal combustion engine together with air. The purge control valve is configured to be attached to the purge pipe to be selectively opened and closed in order to adjust a purge flow rate. The purge control valve is also configured to be opened based on a purge request that is made after the internal combustion engine is started. The heating device is configured to heat the purge control valve after the internal combustion engine is started and before the purge request is made.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: August 30, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaaki Yano
  • Publication number: 20220090549
    Abstract: A fuel vapor treating apparatus includes a canister, a purge pipe, a purge control valve, and a heating device. The canister is configured to store fuel vapor generated in a fuel tank. The purge pipe is configured to deliver the fuel vapor stored in the canister to an intake passage of an internal combustion engine together with air. The purge control valve is configured to be attached to the purge pipe to be selectively opened and closed in order to adjust a purge flow rate. The purge control valve is also configured to be opened based on a purge request that is made after the internal combustion engine is started. The heating device is configured to heat the purge control valve after the internal combustion engine is started and before the purge request is made.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 24, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masaaki YANO
  • Patent number: 7864727
    Abstract: If a wireless resource congestion occurs, the wireless resources of the entire system are used efficiently to reduce a disconnection of communication with a congested sector and a state in which a new call cannot be originated nor terminated. A base station control apparatus compares the wireless resource usage amount of each sector of each base station with values stored in a wireless resource threshold table. If a sector of a base station is in the light congestion state, the neighbor search window size of a sector specifying the congested sector as a neighbor is changed to restrict a soft hand-over to the congested sector. If a sector of a base station is in the heavy congestion state, a mobile station which is communicating in the congested sector and receiving radio waves of another sector with stability is subjected to a forced soft hand-over.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: January 4, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Hirokazu Inayoshi, Tomoyasu Sakaguchi, Masaaki Yano, Daiho Kasai, Takanori Moritomo
  • Patent number: 7523742
    Abstract: Leakage of a combustion gas is prevented by installing a seal ring in an annular groove provided in the outer peripheral surface of a fuel injection valve. Further, a combustion gas leaked from the seal ring is sealed in by providing a seal washer more on the rear end side of the fuel injection valve than the seal ring. Thus a combustion gas seal for an injection valve is provided, and the combustion gas seal is capable of exhibiting excellent sealing ability for a long term with a simple structure.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: April 28, 2009
    Assignees: Toyota Jidosha Kabushiki Kaisha, NOK Corporation
    Inventors: Tomihisa Tsuchiya, Kenji Ohkubo, Masaaki Yano, Iwao Taira, Junichi Nakayama
  • Patent number: 7496383
    Abstract: A neighbor sector is automatically set to effectively perform soft handover. A base station corresponding to a first sector to communicate with a wireless terminal and a base station corresponding to a second sector to start communication with the wireless terminal due to movement of the wireless terminal or the like transmit a terminal identifier acquired from the wireless terminal, a time and a sector identifier to a base station control part (control part in the following). The control part successively stores the received sector identifier into a table correspondingly to the terminal identifier and the time received from the base station. Besides, the control part refers to the table, judges whether different sector identifiers are stored in a previously determined time range, regards a pair of the two different sector identifiers as neighbor sector candidates and counts the number of times they are regarded as the neighbor sector candidates.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 24, 2009
    Assignee: Hitachi Communication Technologies, Ltd.
    Inventors: Ryosuke Kurata, Masaaki Yano, Daiho Kasai, Kenji Yamazaki
  • Publication number: 20070293235
    Abstract: If a wireless resource congestion occurs, the wireless resources of the entire system are used efficiently to reduce a disconnection of communication with a congested sector and a state in which a new call cannot be originated nor terminated. A base station control apparatus compares the wireless resource usage amount of each sector of each base station with values stored in a wireless resource threshold table. If a sector of a base station is in the light congestion state, the neighbor search window size of a sector specifying the congested sector as a neighbor is changed to restrict a soft hand-over to the congested sector. If a sector of a base station is in the heavy congestion state, a mobile station which is communicating in the congested sector and receiving radio waves of another sector with stability is subjected to a forced soft hand-over.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 20, 2007
    Inventors: Hirokazu Inayoshi, Tomoyasu Sakaguchi, Masaaki Yano, Daiho Kasai, Takanori Moritomo
  • Publication number: 20070272214
    Abstract: Leakage of a combustion gas is prevented by installing a seal ring (10) in an annular groove (51) provided in the outer peripheral surface of a fuel injection valve (5). Further, a combustion gas leaked from the seal ring (10) is sealed in by providing a seal washer (11) more on the rear end side of the fuel injection valve than the seal ring (10). Thus a combustion gas seal for an injection valve is provided, and the combustion gas seal is capable of exhibiting excellent sealing ability for a long term with a simple structure.
    Type: Application
    Filed: October 22, 2004
    Publication date: November 29, 2007
    Inventors: Tomihisa Tsuchiya, Kenji Ohkubo, Masaaki Yano, Iwao Taira, Junichi Nakayama
  • Publication number: 20060189308
    Abstract: A neighbor sector is automatically set to effectively perform soft handover. A base station corresponding to a first sector to communicate with a wireless terminal and a base station corresponding to a second sector to start communication with the wireless terminal due to movement of the wireless terminal or the like transmit a terminal identifier acquired from the wireless terminal, a time and a sector identifier to a base station control part (control part in the following). The control part successively stores the received sector identifier into a table correspondingly to the terminal identifier and the time received from the base station. Besides, the control part refers to the table, judges whether different sector identifiers are stored in a previously determined time range, regards a pair of the two different sector identifiers as neighbor sector candidates and counts the number of times they are regarded as the neighbor sector candidates.
    Type: Application
    Filed: January 31, 2006
    Publication date: August 24, 2006
    Inventors: Ryosuke Kurata, Masaaki Yano, Daiho Kasai, Kenji Yamazaki
  • Patent number: 7069908
    Abstract: An injector for directly injecting fuel into a cylinder of an internal combustion engine having a socket. The injector is provided with a nozzle insertable into the socket. An annular gap is defined between the nozzle and the socket when the nozzle is received in the socket. A first seal groove, formed in the nozzle, receives a first gas seal that seals the annular gap. A second seal groove, formed in the nozzle, receives a second gas seal that seals the annular gap. The second seal groove is formed closer to the distal end of the nozzle than the first seal groove. The depth of the second seal groove is greater than that of the first seal groove. This structure prevents the formation of deposits and maintains the sealing capability of the gas seals without lowering installation and maintenance efficiency.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: July 4, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Ohkubo, Masaaki Yano, Yukiharu Tomita
  • Publication number: 20050066942
    Abstract: An injector for directly injecting fuel into a cylinder of an internal combustion engine having a socket. The injector is provided with a nozzle insertable into the socket. An annular gap is defined between the nozzle and the socket when the nozzle is received in the socket. A first seal groove, formed in the nozzle, receives a first gas seal that seals the annular gap. A second seal groove, formed in the nozzle, receives a second gas seal that seals the annular gap. The second seal groove is formed closer to the distal end of the nozzle than the first seal groove. The depth of the second seal groove is greater than that of the first seal groove. This structure prevents the formation of deposits and maintains the sealing capability of the gas seals without lowering installation and maintenance efficiency.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 31, 2005
    Inventors: Kenji Ohkubo, Masaaki Yano, Yukiharu Tomita
  • Patent number: 6227169
    Abstract: A delivery pipe of a fuel supply system for injectors mounted on a cylinder head is divided for each injector or a group of injectors. Divided pipe parts are coupled with each other through a flexible member to allow flexing of the delivery pipe. Each injector is connected with the delivery pipe through a flexible coupling member and with the cylinder head through a flexible cushioning member. Alternatively, a fuel passage is formed in the cylinder head in place of the delivery pipe to supply fuel to the injectors after heating in the cylinder head.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: May 8, 2001
    Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuyuki Sato, Tokio Kohama, Kimitaka Saito, Masaaki Yano
  • Patent number: 6192318
    Abstract: A recording medium suitable for use in an impedance matching apparatus adapted to a waveguide transmitting a microwave to a load. The apparatus includes detecting diodes and a computer. The recording medium includes a program, which includes predetermined approximate expressions. The predetermined approximate expressions recorded in the program correspond to the detecting diodes. The program causes the computer to compute an approximation value of input power to the waveguide using the respective predetermined approximate expressions and output voltages of the detecting diodes.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: February 20, 2001
    Assignee: Fujitsu Limited
    Inventors: Toshiya Yogo, Atsushi Okuda, Masaaki Yano, Tomoyuki Mori
  • Patent number: 6186112
    Abstract: In order to prevent fuel leakage from a high pressure fuel pipe at a low temperature, a sealing capacity of a seal member provided in a fuel transfer portion of a high pressure fuel pipe is estimated in accordance with various conditions and the fuel pressure within the high pressure fuel pipe is controlled on the basis of the estimated sealing capacity so as to secure a sealing property in the fuel transfer portion.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: February 13, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Jun Takahashi, Masaaki Yano, Daichi Yamazaki, Masanori Sugiyama, Akira Yasuki, Ryuji Shibata
  • Patent number: 6131548
    Abstract: A temperature distribution of fuel flowing through a delivery pipe is detected by two fuel temperature sensors provided in the delivery pipe and a fuel tank. When this temperature distribution exceeds an allowable range, adjusted pressure pumping processing in which an amount of fuel corresponding to an injection amount is pumped is stopped and quantitative pressure pumping processing is begun. In quantitative pressure pumping, a rate of fuel flowing through the delivery pipe is increased to an amount exceeding an amount of fuel injected from injectors. With this feature, an amount of fuel flowing through the delivery pipe is greatly increased, a temperature rise rate due to thermal energy from the engine is lowered, and the range of temperature distribution of fuel is narrowed down as a whole. Therefore, differences in output torque among the cylinders is reduced, and variations in the revolution of the engine are suppressed or prevented.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 17, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaaki Yano
  • Patent number: 6073612
    Abstract: Deformation of a delivery pipe in which injectors for injecting fuel into the combustion chambers of corresponding cylinders in an internal combustion engine are accommodated, is suppressed, thereby preventing deterioration of the fuel sealing. At least two mounting portions are provided on respective lengths of the delivery pipes that extend outward from opposite ends of a length of the delivery pipe along which injector-inserting portions are disposed for accommodating the injections. This arrangement of the mounting portions prevents deformation of at least the length of the delivery pipe in which the injector-inserting portions are disposed, thereby preventing deterioration of the fuel sealing between the injectors and the injector-inserting portions of the delivery pipe which could otherwise be caused by high-pressure fuel, thermal contractions at very low temperatures, or the like.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: June 13, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Ohkubo, Masaaki Yano, Masanori Sugiyama
  • Patent number: 5939953
    Abstract: An E-H matching apparatus includes an E-plane branch waveguide connected to an E-plane of a waveguide body, an H-plane branch waveguide connected to an H-plane of the waveguide body, and plungers provided in the E-plane branch waveguide and the H-plane branch waveguide, respectively. The plungers are moved to establish impedance matching between the waveguide and a load. The H-plane branch waveguide has a bend portion formed in close proximity to the waveguide body.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: August 17, 1999
    Assignee: Fujitsu Limited
    Inventors: Toshiya Yogo, Atsushi Okuda, Masaaki Yano, Tomoyuki Mori
  • Patent number: 5927536
    Abstract: A metal easy open can lid, and a process for producing the same, wherein the can openability is improved and the occurrence of defects in the resin film at the time of shaping is eliminated whereby repair coating of the inner and outer surfaces are made unnecessary by making the cross-sectional shape of the opening guide groove of the easy open can lid an S-shape are provided, wherein, when forming the opening piece for easy manual opening in the metal lid, the properties of the resin film on the metal sheet, the shape and dimensions of the shoulder portions of the punch and die, the clearance, the residual thickness of the opening guide groove, the degree of the push-back processing, etc. are specified so as to achieve a superior can openability without breakage of the resin film by forming an opening guide groove with an S-shaped cross-section.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: July 27, 1999
    Assignee: Nippon Steel Corporation
    Inventors: Yashichi Oyagi, Kouji Manabe, Hiroshi Nishida, Takehide Senuma, Hiroshi Itoh, Masaaki Yano, Tetsurou Takeshita, Teruaki Izaki, Shinji Tanimoto