Patents by Inventor Yasushi Iwata

Yasushi Iwata 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: 20110127403
    Abstract: A surface-treated mold that includes a mold, a metal layer that is provided on a surface of the mold and contains at least one metal selected from nickel, chromium, tungsten and brass, and a carbon film that is provided on a surface of the metal layer, wherein the metal layer contains carbon, and the carbon concentration in the metal layer is higher between the boundary with the carbon film and the center of the metal layer than that between the boundary with the mold and the center of the metal layer.
    Type: Application
    Filed: November 12, 2010
    Publication date: June 2, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichi Furukawa, Jun Yaokawa, Yasushi Iwata
  • Patent number: 7886711
    Abstract: An oil drain passage that guides, to an oil pan, lubrication oil in a space surrounded by a side wall of an engine block and an inner wall of a chain cover is formed with a partition formed by contacting a rib provided on the inner wall of the chain cover and a rib provided on the side wall of the engine block. An opening is provided in a portion of the partition.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: February 15, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasushi Iwata, Tatsuhiro Terada
  • Patent number: 7845342
    Abstract: A crankcase that is provided in an internal combustion engine, in which blow-by gas is returned to an intake passage via a gas outflow passage formed in a cylinder block so as to extend in a direction from an upper portion to a lower portion of the cylinder, includes: a partition wall extending in a direction from an upper portion to a lower portion of the crankcase and facing an inner side surface of a crankcase outer wall that also extends in the direction from the upper portion to the lower portion of the crankcase; an internal space that is formed between the partition wall and the inner side surface of the crankcase outer wall and connected to the gas outflow passage at an upper end of the internal space; and a window that is formed on the partition wall to communicate an inside and outside of the internal space.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 7, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tatsuhiro Terada, Yasushi Iwata
  • Patent number: 7836859
    Abstract: A first rib extending downward from a middle portion to an outer peripheral portion is formed on an inner wall of a chain cover. In addition a second rib, which extends downward from the outer peripheral portion to the middle portion and has a height lower than that of the first rib, is formed above the first rib. A projection extending in the height direction of the second rib is provided on an upper surface of the second rib.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: November 23, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasushi Iwata, Tatsuhiro Terada
  • Publication number: 20100269803
    Abstract: In an internal combustion engine (10), oil in an oil pan (21) is pressure-fed to lubrication sites through operation of an oil pump (22). After being used for lubrication of the lubrication sites, the oil runs down and collects in the oil pan (21). The internal combustion engine (10) is provided with a blow-by gas process device (40) including a communication passageway (48) that connects a portion of the intake passageway (12) on the downstream side of the throttle valve (13) in the intake flow direction and an interior of the crankcase (15) in communication. A pressure chamber (47) to which an end portion of the communication passageway (48) is open is defined in the interior of the crankcase (15). Oil scattered in the interior of the crankcase (15) is introduced into an interior of the pressure chamber (47) before mixing with the oil collected in the oil pan (21).
    Type: Application
    Filed: December 23, 2008
    Publication date: October 28, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yasushi Iwata
  • Publication number: 20100192887
    Abstract: An oil recovery part (20A, 20B) for guiding oil to an inner side of a peripheral wall of a cylinder head (2) is provided at a front wall upper end of the cylinder head (2), the oil leaking from a concave bearing (3a, 3b) that supports a camshaft (8, 9) provided at a forefront end of a cam housing (3).
    Type: Application
    Filed: July 18, 2008
    Publication date: August 5, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yasushi Iwata
  • Patent number: 7648586
    Abstract: In a surface layer of an ultra-low carbon stainless steel comprising a seal function layer in the surface layer, an ion such as a nitrogen ion is implanted to form the seal function layer. Since the ultra-low carbon stainless steel comprising the seal function layer is excellent in elasticity, sealing properties, peelability and abrasion resistance, it can make a seal material which has been used unnecessary, and can realize all stainless-made products such as seal and joint system parts.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: January 19, 2010
    Assignee: National Institute of Advanced Industrial & Technology
    Inventors: Yasushi Iwata, Akiyoshi Chayahara
  • Publication number: 20090194062
    Abstract: An oil drain passage that guides, to an oil pan, lubrication oil in a space surrounded by a side wall of an engine block and an inner wall of a chain cover is formed with a partition formed by contacting a rib provided on the inner wall of the chain cover and a rib provided on the side wall of the engine block. An opening is provided in a portion of the partition.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasushi IWATA, Tatsuhiro TERADA
  • Publication number: 20090188478
    Abstract: A crankcase that is provided in an internal combustion engine, in which blow-by gas is returned to an intake passage via a gas outflow passage formed in a cylinder block so as to extend in a direction from an upper portion to a lower portion of the cylinder, includes: a partition wall extending in a direction from an upper portion to a lower portion of the crankcase and facing an inner side surface of a crankcase outer wall that also extends in the direction from the upper portion to the lower portion of the crankcase; an internal space that is formed between the partition wall and the inner side surface of the crankcase outer wall and connected to the gas outflow passage at an upper end of the internal space; and a window that is formed on the partition wall to communicate an inside and outside of the internal space.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuhiro TERADA, Yasushi Iwata
  • Publication number: 20090188465
    Abstract: A first rib extending downward from a middle portion to an outer peripheral portion is formed on an inner wall of a chain cover. In addition a second rib, which extends downward from the outer peripheral portion to the middle portion and has a height lower than that of the first rib, is formed above the first rib. A projection extending in the height direction of the second rib is provided on an upper surface of the second rib.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasushi Iwata, Tatsuhiro Terada
  • Publication number: 20090114848
    Abstract: The invention provides a cluster film formation system in which, in a cluster formation container 5, target 1 is irradiated with laser beams 2 to generate material vapor, which generates a shock wave 4 of an inert gas, and the shock wave 4 is reflected by a wall of the cluster formation container 5 to confine the material vapor having progressed in a particular region, and atoms or molecules of the material vapor and the inert gas collide with each other mutually to form groups of clusters, which are made to flow out through an outflow window 7, and sprayed deposited on a substrate 9 to form a cluster film 10.
    Type: Application
    Filed: December 7, 2006
    Publication date: May 7, 2009
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Yasushi Iwata, Toshio Takiya
  • Patent number: 7221963
    Abstract: An antenna selection diversity apparatus capable of shortening, when antennas are switched in frame units, a measuring time of antennas and shortening the time of selecting an optimal antenna from among a plurality of antennas on standby. In this apparatus, an antenna selection section (109) selects one of three antennas as an antenna in actual use for a period of a plurality of frames consecutively according to selection priority stored in an antenna information storage section (108) and gives an instruction for selecting one of two antennas on standby as an antenna to be measured once at a period of a plurality of frames to an antenna selection switch (104).
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: May 22, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiharu Ishihara, Yasushi Iwata, Toshio Obara
  • Patent number: 7137438
    Abstract: A storage apparatus is provided that comprises a display case part with an inside thereof being dividable into a plurality of zones, a supply duct that is connected to supply openings for supplying conditioning air for controlling environmental conditions to the plurality of zones respectively, and an exhaust duct that is connected to exhaust openings for taking in air from the plurality of zones. In this storage apparatus, conditioning air such as cold air or hot air is circulated in the respective zones, and the environmental conditions can be adjusted efficiently in zone basis. Therefore, in a storage apparatus equipped with an open-type display case part, it is possible to dispense with an air curtain covering the entire open side, so that a storage apparatus with a high storage capacity is provided.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: November 21, 2006
    Assignee: GAC Corporation
    Inventors: Satoshi Nomura, Yuuichi Minamiyama, Ichiro Furihata, Kenji Kuno, Yasushi Iwata
  • Publication number: 20060234776
    Abstract: An antenna selection diversity apparatus capable of shortening, when antennas are switched in frame units, a measuring time of antennas and shortening the time of selecting an optimal antenna from among a plurality of antennas on standby. In this apparatus, an antenna selection section (109) selects one of three antennas as an antenna in actual use for a period of a plurality of frames consecutively according to selection priority stored in an antenna information storage section (108) and gives an instruction for selecting one of two antennas on standby as an antenna to be measured once at a period of a plurality of frames to an antenna selection switch (104).
    Type: Application
    Filed: November 4, 2004
    Publication date: October 19, 2006
    Inventors: Yoshiharu Ishihara, Yasushi Iwata, Toshio Obara
  • Publication number: 20060104850
    Abstract: In a surface layer of an ultra-low carbon stainless steel comprising a seal function layer in the surface layer, an ion such as a nitrogen ion is implanted to form the seal function layer. Since the ultra-low carbon stainless steel comprising the seal function layer is excellent in elasticity, sealing properties, peelability and abrasion resistance, it can make a seal material which has been used unnecessary, and can realize all stainless-made products such as seal and joint system parts.
    Type: Application
    Filed: July 30, 2003
    Publication date: May 18, 2006
    Inventors: Yasushi Iwata, Akiyoshi Chayahara
  • Publication number: 20050061758
    Abstract: A storage apparatus is provided that comprises a display case part with an inside thereof being dividable into a plurality of zones, a supply duct that is connected to supply openings for supplying conditioning air for controlling environmental conditions to the plurality of zones respectively, and an exhaust duct that is connected to exhaust openings for taking in air from the plurality of zones. In this storage apparatus, conditioning air such as cold air or hot air is circulated in the respective zones, and the environmental conditions can be adjusted efficiently in zone basis. Therefore, in a storage apparatus equipped with an open-type display case part, it is possible to dispense with an air curtain covering the entire open side, so that a storage apparatus with a high storage capacity is provided.
    Type: Application
    Filed: December 27, 2002
    Publication date: March 24, 2005
    Inventors: Satoshi Nomura, Yuuichi Minamiyama, Ichiro Furihata, Kenji Kuno, Yasushi Iwata
  • Patent number: 6847261
    Abstract: A constant output signal can be achieved by controlling a gain variable amplifier 2 based on a level of an output signal which is derived by variably amplifying a receiving signal S1 (input signal). An AGC output signal S11 is detected by a detector circuit 3, then a detected voltage signal S7 is converted into a digital signal by an A/D converter 4 to output it to a CPU 5. Then, the CPU 5 generates a control signal S8 based on the detected voltage signal S7, then an A/D converter 6 converts the control signal S8 into the analogue signal, and then the signal is sent out to the gain variable amplifier 2 to execute gain control. At this time, an RSSI detector portion 9 detects an RSSI signal S10 corresponding to a transmitting signal level from the receiving signal S1, and then the CPU 5 sends out the control signal S8 stored at the time of preceding execution of the gain control when the RSSI signal S10 is reduced below a predetermined threshold value S12.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: January 25, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Iwata, Yasufumi Ichikawa
  • Publication number: 20040189383
    Abstract: A constant output signal can be achieved by controlling a gain variable amplifier 2 based on a level of an output signal which is derived by variably amplifying a receiving signal S1 (input signal). An AGC output signal S11 is detected by a detector circuit 3, then a detected voltage signal S7 is converted into a digital signal by an A/D converter 4 to output it to a CPU 5. Then, the CPU 5 generates a control signal S8 based on the detected voltage signal S7, then an A/D converter 6 converts the control signal S8 into the analogue signal, and then the signal is sent out to the gain variable amplifier 2 to execute gain control. At this time, an RSSI detector portion 9 detects an RSSI signal S10 corresponding to a transmitting signal level from the receiving signal S1, and then the CPU 5 sends out the control signal S8 stored at the time of preceding execution of the gain control when the RSSI signal S10 is reduced below a predetermined threshold value S12.
    Type: Application
    Filed: April 12, 2004
    Publication date: September 30, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Iwata, Yasufumi Ichikawa
  • Patent number: 6745016
    Abstract: A constant output signal can be achieved by controlling a gain variable amplifier 2 based on a level of an output signal which is derived by variably amplifying a receiving signal S1 (input signal). An AGC output signal S11 is detected by a detector circuit 3. Then, a CPU 5 generates a control signal S8 based on a detected voltage signal S7. An RSSI detector portion 9 detects an RSSI signal S10 corresponding to a transmitting signal level from the receiving signal S1. The transmitting signal level is compared to a preceding transmitting signal level. The control signal from a preceding execution of the gain control is output if the present control signal is lower than the preceding control signal and the present transmitting signal level is reduced below the preceding transmitting signal level.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: June 1, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Iwata, Yasufumi Ichikawa
  • Patent number: 6708025
    Abstract: At the power-on, a determination section (9) outputs a switch control signal (m) to a selector switch (7) to select the output of a sweep signal generator (6) which generates a voltage sweep signal (h) that increases from the minimum value to the maximum value of the gain control voltage range (p) at the same time, then provides the voltage sweep signal (h) to the variable gain amplifier (1), and calculates the difference (f) between the level detection value of an output signal (c) and a convergence value (e) and detects a sweep voltage value (j) obtained when (f)=0 and stores the sweep voltage value (j) into memory. After the sweep operation, the sweep voltage value (j) stored in memory is provided as a gain control signal (b) to the variable gain amplifier (1). Then the primary automatic gain control via the closed loop control system is started.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 16, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Iwata, Yasufumi Ichikawa