Patents by Inventor Seiichi Yamashita

Seiichi Yamashita 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: 11903115
    Abstract: A heating cooker includes a heating chamber, a heating portion, a brushless motor, a body control circuit, a DC power supply circuit, a motor control circuit, and a safety device. The brushless motor drives a rotary drive mechanism included in the heating portion. The body control circuit outputs a drive signal for the brushless motor. The DC power supply circuit supplies DC power to the brushless motor. The motor control circuit controls the driving of the brushless motor in response to the drive signal. The safety device includes a rotation detection element to detect the rotation state of the rotor of the brushless motor and output a rotation detection signal, and a switch for blocking a power supply line connected to the DC power supply circuit. The safety device controls the switch in response to the rotation detection signal and drive signal.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 13, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryosuke Otani, Hiroyuki Katsube, Masato Yota, Seiichi Yamashita
  • Patent number: 10895385
    Abstract: Cooking apparatus (10) includes heating chamber (4) in which an object to be heated is rested, radiant heater unit (38) provided inside heating chamber (4) and operating in the preheating mode and cooking mode, and a control unit controlling radiant heater unit (38). The control unit is configured to make radiant heater unit (38) operate in the standby mode, which is a mode after the preheating mode ends and until the cooking mode starts. According to this aspect, the surface temperature of radiant heater unit (38) is kept at a high level during the standby mode to suppress uneven browning due to variations in the surface temperature of radiant heater unit (38) when cooking starts.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: January 19, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuichi Otsuki, Takahide Yamaguchi, Takahiro Hayashi, Seiichi Yamashita
  • Patent number: 10697643
    Abstract: In a cooker according to the present disclosure, a convection heater for executing a convection mode and a circulation fan are disposed in a convection forming space that is in communication with a heating chamber, and a fan driver is disposed outside of the convection forming space. The cooker includes a leakage suppression mechanism for suppressing a microwave leak from the convection forming space. The leakage suppression mechanism is formed by a coaxial seal for setting a distance between opposing faces, i.e., between a circulation fan shaft passing through a first wall forming the convection forming space and the first wall to a predetermined distance or smaller. Therefore, a microwave leak from a mechanism for executing the convection mode is suppressed, and heat cooking with a microwave-heating mode can highly effectively be performed.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: June 30, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Seiichi Yamashita, Takahiro Hayashi
  • Patent number: 10609772
    Abstract: In a microwave heating device of the present disclosure, inverter unit drives first and second microwave generators. Cooling unit cools first and second microwave generators and inverter unit. First and second waveguides supplies, to cavity, microwaves generated by first and second microwave generators. First and second microwave generators are disposed side by side in a right-left direction below a bottom surface of cavity. Inverter unit and cooling fan are disposed from the first and second microwave generators toward a front side in order, and first and second waveguides are provided so as to extend in a front-back direction from first and second microwave generators, respectively. According to the present disclosure, the microwave heating device can be further downsized in a right-left direction.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: March 31, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takahiro Hayashi, Yuichi Otsuki, Seiichi Yamashita, Mikio Fukui, Toshifumi Kamiya
  • Publication number: 20190394839
    Abstract: A heating cooker of the present disclosure includes a heating chamber, a heating portion, a brushless motor, a body control circuit, a DC power supply circuit, a motor control circuit, and a safety device. The brushless motor is a drive source of a rotary drive mechanism included in the heating portion. The body control circuit outputs a drive signal for the brushless motor. The DC power supply circuit supplies DC power to the brushless motor. The motor control circuit controls the driving of the brushless motor in response to the drive signal. The safety device is constituted of a wired logic circuit. The safety device includes: a rotation detection element configured to detect the rotation state of the rotor of the brushless motor, and to output a rotation detection signal; and a switch for blocking a power supply line connected to the DC power supply circuit. The safety device controls the switch in response to the rotation detection signal and drive signal.
    Type: Application
    Filed: December 4, 2017
    Publication date: December 26, 2019
    Inventors: RYOSUKE OTANI, HIROYUKI KATSUBE, MASATO YOTA, SEIICHI YAMASHITA
  • Patent number: 10368403
    Abstract: Heating cooker (30) of the present disclosure includes convection device (35) that includes fan (14), heater (13), a first air guide, and second air guide, is communicated with heating chamber (2) through a suction port and a discharge port provided in back wall (2d) of heating chamber (2), and supplies hot air to the heating chamber (2). Fan (14) sucks air inside heating chamber (2) from the suction port into convection device (35), and sends out the air from the discharge port into heating chamber (2). Heater (13) is provided in front of fan (14), and heats the sucked air. The first air guide is provided so as to surround heater (13), and guides the heated air to the discharge port. The second air guide is provided so as to surround fan (14) and the first air guide, and guides the heated air to the discharge port. A part of the second air guide is in contact with the first air guide, and another part of the second air guide is isolated from the first air guide.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: July 30, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takahiro Hayashi, Yuichi Otsuki, Seiichi Yamashita, Mikio Fukui, Toshifumi Kamiya
  • Publication number: 20180119962
    Abstract: Cooking apparatus (10) includes heating chamber (4) in which an object to be heated is rested, radiant heater unit (38) provided inside heating chamber (4) and operating in the preheating mode and cooking mode, and a control unit controlling radiant heater unit (38). The control unit is configured to make radiant heater unit (38) operate in the standby mode, which is a mode after the preheating mode ends and until the cooking mode starts. According to this aspect, the surface temperature of radiant heater unit (38) is kept at a high level during the standby mode to suppress uneven browning due to variations in the surface temperature of radiant heater unit (38) when cooking starts.
    Type: Application
    Filed: August 9, 2016
    Publication date: May 3, 2018
    Inventors: YUICHI OTSUKI, TAKAHIDE YAMAGUCHI, TAKAHIRO HAYASHI, SEIICHI YAMASHITA
  • Publication number: 20180119961
    Abstract: In a cooker according to the present disclosure, a convection heater for executing a convection mode and a circulation fan are disposed in a convection forming space that is in communication with a heating chamber, and a fan driver is disposed outside of the convection forming space. The cooker includes a leakage suppression mechanism for suppressing a microwave leak from the convection forming space. The leakage suppression mechanism is formed by a coaxial seal for setting a distance between opposing faces, i.e., between a circulation fan shaft passing through a first wall forming the convection forming space and the first wall to a predetermined distance or smaller. Therefore, a microwave leak from a mechanism for executing the convection mode is suppressed, and heat cooking with a microwave-heating mode can highly effectively be performed.
    Type: Application
    Filed: August 23, 2016
    Publication date: May 3, 2018
    Inventors: SEIICHI YAMASHITA, TAKAHIRO HAYASHI
  • Publication number: 20160330800
    Abstract: In a microwave heating device of the present disclosure, inverter unit drives first and second microwave generators. Cooling unit cools first and second microwave generators and inverter unit. First and second waveguides supplies, to cavity, microwaves generated by first and second microwave generators. First and second microwave generators are disposed side by side in a right-left direction below a bottom surface of cavity. Inverter unit and cooling fan are disposed from the first and second microwave generators toward a front side in order, and first and second waveguides are provided so as to extend in a front-back direction from first and second microwave generators, respectively. According to the present disclosure, the microwave heating device can be further downsized in a right-left direction.
    Type: Application
    Filed: February 5, 2015
    Publication date: November 10, 2016
    Inventors: Takahiro Hayashi, Yuichi Otsuki, Seiichi Yamashita, Mikio Fukui, Toshifumi Kamiya
  • Publication number: 20160330801
    Abstract: Heating cooker (30) of the present disclosure includes convection device (35) that includes fan (14), heater (13), a first air guide, and second air guide, is communicated with heating chamber (2) through a suction port and a discharge port provided in back wall (2d) of heating chamber (2), and supplies hot air to the heating chamber (2). Fan (14) sucks air inside heating chamber (2) from the suction port into convection device (35), and sends out the air from the discharge port into heating chamber (2). Heater (13) is provided in front of fan (14), and heats the sucked air. The first air guide is provided so as to surround heater (13), and guides the heated air to the discharge port. The second air guide is provided so as to surround fan (14) and the first air guide, and guides the heated air to the discharge port. A part of the second air guide is in contact with the first air guide, and another part of the second air guide is isolated from the first air guide.
    Type: Application
    Filed: February 5, 2015
    Publication date: November 10, 2016
    Inventors: TAKAHIRO HAYASHI, YUICHI OTSUKI, SEIICHI YAMASHITA, MIKIO FUKUI, TOSHIFUMI KAMIYA
  • Patent number: 7609164
    Abstract: A radio tag evaluation system includes a transmission member providing a frequency signal to a radio tag. A transmitting antenna, which is placed on one side of the radio tag for transmiting the inquiry signal supplied from the transmission member. The radio tag is placed and supported around the center of an anechoic box. A receiving antenna is placed on the other side of the radio tag. A reception member is connected to the receiving antenna for analyzing a response signal. The transmitting antenna and the receiving antenna are placed orthogonally to each other, and the primary face of the radio tag is placed substantially at an angle of 45 degrees with respect to the transmitting antenna. The receiving antenna is unable to directly receive a transmission radio wave which has passed around the radio tag. Accordingly, a response signal emitted from the radio tag can be relatively strongly received.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: October 27, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventor: Seiichi Yamashita
  • Patent number: 7448631
    Abstract: In a braiding yarn made of expanded graphite 1, a reinforcing wire member 3 made of a stainless steel wire which is easily plastically deformed, and having a diameter of 0.05 to 0.2 mm is spirally wound around the outer periphery of a twisted expanded graphite base member 2 having a width of 3 mm and a thickness of 0.38 mm, at a narrow pitch P of 0.5 to 5 mm without slack. Alternatively, the reinforcing wire member is wound so as to be embedded in the inner side of and along an edge 4 of an expanded graphite tape which is spirally exposed from the outer surface of the expanded graphite base member 2.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 11, 2008
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Masao Shimizu, Seiichi Yamashita, Takahisa Ueda, Masaru Fujiwara, Akio Ohtani
  • Publication number: 20080202068
    Abstract: A packaging object supplying apparatus for supplying a packaging object to a packaging unit for packaging the packaging object into a predetermined fashion and specifically, a packaging object supplying apparatus comprising a packaging object combining portion for forming a combination of the packaging objects by combining two or more kinds of the packaging objects by a predetermined quantity in a predetermined array and a packaging object introducing portion for introducing the packaging objects combined by the packaging object combining portion to the packaging unit, a boxing apparatus comprising foldable box body supplying means, opening forming means, box body holding means, packaging object loading means, and lid forming means, a box body supplying apparatus for supplying a box body to the boxing apparatus.
    Type: Application
    Filed: April 28, 2008
    Publication date: August 28, 2008
    Inventors: Haruo Ichikawa, Makoto Shimizu, Kazuyuki Kosemura, Akira Wakabayashi, Katsutoshi Nakamura, Masaharu Minagi, Minoru Tamura, Seiichi Yamashita, Toshihide Sasaki
  • Patent number: 7370456
    Abstract: A packaging object supplying apparatus for supplying a packaging object to a packaging unit for packaging the packaging object into a predetermined fashion and specifically, a packaging object supplying apparatus comprising a packaging object combining portion for forming a combination of the packaging objects by combining two or more kinds of the packaging objects by a predetermined quantity in a predetermined array and a packaging object introducing portion for introducing the packaging objects combined by the packaging object combining portion to the packaging unit, a boxing apparatus comprising foldable box body supplying means, opening forming means, box body holding means, packaging object loading means, and lid forming means, a box body supplying apparatus for supplying a box body to the boxing apparatus.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: May 13, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Haruo Ichikawa, Makoto Shimizu, Kazuyuki Kosemura, Akira Wakabayashi, Katsutoshi Nakamura, Masaharu Minagi, Minoru Tamura, Seiichi Yamashita, Toshihide Sasaki
  • Publication number: 20070046472
    Abstract: A radio tag evaluation system includes a transmission member providing a frequency signal to a radio tag. A transmitting antenna, which is placed on one side of the radio tag for transmiting the inquiry signal supplied from the transmission member. The radio tag is placed and supported around the center of an anechoic box. A receiving antenna is placed on the other side of the radio tag. A reception member is connected to the receiving antenna for analyzing a response signal. The transmitting antenna and the receiving antenna are placed orthogonally to each other, and the primary face of the radio tag is placed substantially at an angle of 45 degrees with respect to the transmitting antenna. The receiving antenna is unable to directly receive a transmission radio wave which has passed around the radio tag. Accordingly, a response signal emitted from the radio tag can be relatively strongly received.
    Type: Application
    Filed: August 23, 2006
    Publication date: March 1, 2007
    Inventor: Seiichi Yamashita
  • Patent number: 7034665
    Abstract: A structure is provided for installing in a motorcycle an anti-theft device capable of reporting its position by wirelessly transmitting at least identifying information utilizing the GPS or PHS positioning system. The structure includes a receptacle and an openable cover that can be locked to secure the receptacle, and the anti-theft device is installed in the receptacle. The receptacle can be a helmet box formed in the motorcycle and a cover that can be an openable and lockable motorcycle seat. The structure conceals the anti-theft device, protects it from vibration and invasion of rainwater, and can include a case with enhanced waterproofing capability in which the anti-theft device is accommodated so that an indicator thereof is visible through a transparent window.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: April 25, 2006
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Honda Access Corp.
    Inventors: Ken Kojika, Akihiko Yamashita, Seiichi Yamashita, Atushi Hatayama, Motoharu Okumura
  • Publication number: 20050218604
    Abstract: In a braiding yarn made of expanded graphite 1, a reinforcing wire member 3 made of a stainless steel wire which is easily plastically deformed, and having a diameter of 0.05 to 0.2 mm is spirally wound around the outer periphery of a twisted expanded graphite base member 2 having a width of 3 mm and a thickness of 0.38 mm, at a narrow pitch P of 0.5 to 5 mm without slack. Alternatively, the reinforcing wire member is wound so as to be embedded in the inner side of and along an edge 4 of an expanded graphite tape which is spirally exposed from the outer surface of the expanded graphite base member 2.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 6, 2005
    Inventors: Masao Shimizu, Seiichi Yamashita, Takahisa Ueda, Masaru Fujiwara, Akio Ohtani
  • Publication number: 20040036609
    Abstract: A structure is provided for installing in a motorcycle an anti-theft device capable of reporting its position by wirelessly transmitting at least identifying information utilizing the GPS or PHS positioning system. The structure includes a receptacle and an openable cover that can be locked to secure the receptacle, and the anti-theft device is installed in the receptacle. The receptacle can be a helmet box formed in the motor cycle and cover the can be an openable and lockable motorcycle seat. The structure conceals the anti-theft device, protects it from vibration and invasion of rainwater, and can include a case with enhanced waterproofing capability in which the anti-theft device is accommodated so that an indicator thereof is visible through a transparent window.
    Type: Application
    Filed: May 21, 2002
    Publication date: February 26, 2004
    Inventors: Ken Kojika, Akihiko Yamashita, Seiichi Yamashita, Atushi Hatayama, Motoharu Okumura
  • Publication number: 20040000121
    Abstract: An object of the invention is to provide a packaging system in which film cases are loaded in a small box of various sizes and configurations and these small boxes are packaged in a corrugated board box, so that the small box package in which the film cases are loaded in the small box thereof can be automatically manufactured and specifically, a packaging system in which the small assemblies are assembled in an assembly fashion in accordance with the configuration and size of the small box package and loaded in the corrugated board box and a packaging object supplying apparatus and boxing apparatus available for this packaging system.
    Type: Application
    Filed: May 9, 2003
    Publication date: January 1, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Haruo Ichikawa, Makoto Shimizu, Kazuyuki Kosemura, Akira Wakabayashi, Katsutoshi Nakamura, Masaharu Minagi, Minoru Tamura, Seiichi Yamashita, Toshihide Sasaki
  • Patent number: 6068413
    Abstract: A perforator apparatus for continuous photo film includes a perforator unit having a punch and a die. The perforator unit is disposed between first and second suction chambers. The photo film is extended past each of the suction chambers. A blower applies suction of air through the suction chambers, to apply tension to the photo film through the perforator unit. The perforator unit is disposed between a feed roller and a sprocket roller, which convey intermittently the photo film by a punching length. A first pass roller continuously conveys the photo film into the first suction chamber. A first loop of the photo film in the first suction chamber is maintained with a length substantially of an arc of a semi-circle defined between the first pass roller and the feed roller. A second pass roller continuously conveys the photo film from the second suction chamber.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: May 30, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideyuki Karaki, Akihiko Hase, Seiichi Yamashita, Takayuki Kambara, Akira Wakabayashi