Patents by Inventor Nobuhiro Fujiwara

Nobuhiro Fujiwara 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: 20020074766
    Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.
    Type: Application
    Filed: February 21, 2002
    Publication date: June 20, 2002
    Inventors: Nobuhiro Fujiwara, Atsushi Mamiya
  • Publication number: 20020053779
    Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A crank lever is connected between a sprocket and the one of pedal levers. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved, not fixed, in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. With such an arrangement, a configuration of the rotating force transmitting mechanism for the rear wheel is simplified. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth rotation of the pedal is assured.
    Type: Application
    Filed: June 9, 1999
    Publication date: May 9, 2002
    Inventors: NOBUHIRO FUJIWARA, ATSUSHI MAMIYA
  • Patent number: 6349956
    Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: February 26, 2002
    Assignee: Sony Corporation
    Inventors: Nobuhiro Fujiwara, Atsushi Mamiya
  • Patent number: 6340067
    Abstract: A pedaling force detection means can be simplified in arrangement, the number of assemblies thereof can be decreased, the pedaling force detection means can be made inexpensive and can detect a pedaling force reliably. A bicycle comprises a drive assist attached to a driving wheel (3), a driving power transmission means (20) attached between a sprocket (26) and a rear wheel, a pair of pedal levers (22), a crank lever (30R) for transmitting a rotation force of the pedal lever to the sprocket and a sliding portion (40R) serving as a swing fulcrum of the pedal lever. A slide pin (42R) at one end of the pedal lever slides within the slide portion in accordance with the rotation of the pedal lever to transmit a rotation force generated by the rotation of the pedal lever to the rear wheel through the sprocket.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: January 22, 2002
    Assignee: Sony Corporation
    Inventors: Nobuhiro Fujiwara, Atsushi Mamiya
  • Publication number: 20010048209
    Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.
    Type: Application
    Filed: July 28, 1999
    Publication date: December 6, 2001
    Inventors: NOBUHIRO FUJIWARA, ATSUSHI MAMIYA
  • Patent number: 6200100
    Abstract: A lift amount of a valve plug is controlled with respect to a period of time from valve-closing operation instruction time for an electric opening/closing valve to arrival at a preset quick valve-closing operation position at which a flow line of a fluid discharged from a discharge port of a nozzle is in a constricted state, in accordance with a driving action of an electric actuator. The valve plug of the electric opening/closing valve is controlled to be at a closed position after the arrival at the quick valve-closing operation position. Accordingly, it is possible to prevent the incontinent liquid drip from the nozzle during the valve-closing operation of the electric opening/closing valve.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: March 13, 2001
    Assignee: SMC Kabushiki Kaisha
    Inventors: Qinghai Yang, Hirosuke Yamada, Kazuya Tamura, Nobuhiro Fujiwara
  • Patent number: 6092782
    Abstract: A opening and closing valve comprises ROM in which a plurality of valve-closing program control patterns are stored in order to avoid liquid drip when the valve is closed. The valve further comprises a control unit for controlling a valve plug lift position in a direction to close the valve by controlling an amount of electric power application to a linear voice coil type driving unit in accordance with the valve-closing program control pattern.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: July 25, 2000
    Assignee: SMC Kabushiki Kaisha
    Inventors: Hirosuke Yamada, Kazuya Tamura, Nobuhiro Fujiwara
  • Patent number: 6000629
    Abstract: A suck back valve comprises a linear actuator which displaces a second diaphragm through a stem, an encoder which detects a displacement amount of the linear actuator, and a flow amount controller for controlling a pilot pressure supplied to an ON/OFF valve mechanism.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: December 14, 1999
    Assignee: SMC Kabushiki Kaisha
    Inventors: Kazuya Tamura, Hirosuke Yamada, Nobuhiro Fujiwara
  • Patent number: 5741608
    Abstract: Internal shorting of large capacity multi-layer type nonaqueous electrolyte secondary cells is minimized by inclusion of heat resistant porous film layers adjacent thermally fusible resin microporous films disposed between negative electrodes and positive electrodes in an electrode assembly and between adjacent electrode assemblies stacked together to provide an electrode stack. The heat resistant porous film layers may be organic or inorganic temperature resistant sheet materials exhibiting heat resistance to temperatures of at least about 600.degree. C.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: April 21, 1998
    Assignee: Sony Corporation
    Inventors: Kazuya Kojima, Yasuo Yukita, Nobuhiro Fujiwara, Yukio Noda
  • Patent number: 5736270
    Abstract: A battery device having a high discharge current value and a high current collecting efficiency at electrodes. A first active material is applied on a first current collecting unit avoiding one end and/or the other end of the width direction to form an anode, and a second active material is applied on a second current collecting unit avoiding one end and/or the other end of the width direction to form a cathode. The current generated at the electrodes formed by winding the anode and cathode via separators is output through the parts uncoated with the first active material of anode and the parts uncoated with the second active material of cathode, so as to realize the battery device having a high discharge current value and a high current collecting efficiency at the electrodes.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: April 7, 1998
    Assignee: Sony Corporation
    Inventors: Hirotsugu Suzuki, Nobuhiro Fujiwara
  • Patent number: 5705292
    Abstract: A lithium ion secondary battery according to the present invention includes a positive electrode, a negative electrode, a separator, and a heat-resistant and heat-insulating film having pores. The heat-resistant and heat-insulating film is formed on at least one of surfaces opposed to each other of the positive and negative electrodes. The positive electrode and the negative electrodes are laminated through the separator. The heat-resistant and heat-insulating film contains metal oxide, metal carbonate or metal nitride. The heat-resistant and heat-insulating film is formed by spraying powders of metal oxide, metal carbonate or metal nitride. The spraying is plasma spraying. A surface where the positive electrode and the negative electrode are not opposed to each other is provided. On at least one of surfaces forming the interface, the heat-resistant and heat-insulating film is formed by spraying powders of metal oxide, metal nitride or the like.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: January 6, 1998
    Assignee: Sony Corporation
    Inventors: Yasuo Yukita, Nobuhiro Fujiwara, Yukio Noda, Kazuya Kojima
  • Patent number: 5691894
    Abstract: A cylinder positioning control apparatus designed to effect positioning of a cylinder by learning control that uses not only an overrun distance but also a cylinder speed as input data for control. The apparatus has a device for taking in a displacement x and speed V of a cylinder, a device for calculating a predicted overrun distance y.sub.i for the present drive from a predicted overrun distance y.sub.i-1 in the preceding drive, a cylinder speed V.sub.i-1 at the time of outputting a braking signal during the preceding drive, and a speed V.sub.i of the cylinder being driven, a device for judging whether or not a condition to be satisfied to output a braking signal is satisfied, and for outputting a braking signal when the condition is satisfied, a device for taking in a displacement x.sub.bp and speed V.sub.bp of the cylinder when the braking signal is output, a device for taking in a displacement x.sub.stop of the cylinder when it has stopped, and a device for calculating a predicted overrun distance y.sub.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: November 25, 1997
    Assignee: SMC Corporation
    Inventors: Kenji Fukushima, Hitoshi Yamamoto, Nobuhiro Fujiwara, Hiroyuki Shimono
  • Patent number: 5653314
    Abstract: A rodless cylinder with a position detector and a brake has a sliding table which is slidably retained on a cylinder tube. A moving member (piston yoke) of the rodless cylinder is secured to the sliding table. A brake unit part is connected to one side of the sliding table, and a sensor part is connected to the other side of the sliding table. A brake plate is disposed to extend through the brake unit part. Both ends of the brake plate are connected to a first and second head covers, respectively, which are provided at both ends of the cylinder tube. A first and second brake shoes are disposed to sandwich the brake plate therebetween. The first brake shoe is subjected to brake spring force. A passage for supplying a pressure fluid is communicated with the other side of the sliding table. Thus, the brake is actuated by allowing the brake spring force, together with a fluid pressure if necessary, to act on the first brake shoe, and the brake is released by the action of a fluid pressure.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: August 5, 1997
    Assignee: SMC Corporation
    Inventors: Hitoshi Yamamoto, Kenji Fukushima, Hiroyuki Shimono, Nobuhiro Fujiwara
  • Patent number: 5557189
    Abstract: A battery charging apparatus for charging the electricity from a current source to a cell includes a variable resistor in parallel with the cell, a cell voltage detection unit for detecting the current voltage value of the cell and a comparator for comparing the current voltage value to a pre-set voltage value. The resistance value of the variable resistor is controlled responsive to the results of comparison so that the current from the current source is caused to flow through both the cell and the variable resistor with progress in the charging of the cell. The current is prevented from flowing through the cell when the cell is fully charged, so that overcharging is eliminated. If plural cells are charged in series, the control operation of not causing the current to flow through the fully charged cell can be carried out for each of the cells, so that integrated charging may be continued until all of the cells are fully charged thus shortening the cell charging time.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: September 17, 1996
    Assignee: Sony Corporation
    Inventors: Mamoru Suzuki, Minoru Iijima, Yasuyuki Ishihama, Nobuhiro Fujiwara
  • Patent number: 5481959
    Abstract: An automatic air balancer system capable of maintaining various kinds of load at a predetermined position and then moving the load at a desired speed, or applying a desired mechanical force to various kinds of object. The system includes a device for controlling the pressure at one end side of a balance cylinder to a desired level by a first pressure control valve and for controlling the pressure at the other end side of the balance cylinder to a predetermined level by a second pressure control valve, and a device for obtaining a balance pressure signal for the balance cylinder. Another signal is added to or subtracted from the balance pressure signal, and the resulting signal is input to the first pressure control valve.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: January 9, 1996
    Assignee: SMC Corporation
    Inventors: Masayuki Watanabe, Nobuhiro Fujiwara, Kunihisa Kaneko, Kenji Kanazawa
  • Patent number: 5423243
    Abstract: A relief valve 23 serving as cushion pressure adjusting means in a cushion mechanism is provided on a support member 4, and the support member 4 is rotatably mounted on covers 2 and 3 of a pneumatic cylinder in order to facilitate adjustment of relief pressure.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: June 13, 1995
    Assignee: SMC Corporation
    Inventors: Yoshisuke Yamashita, Kunihisa Kaneko, Nobuhiro Fujiwara
  • Patent number: D373776
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: September 17, 1996
    Assignee: SMC Corporation
    Inventors: Hitoshi Yamamoto, Kenji Fukushima, Hiroyuki Shimono, Nobuhiro Fujiwara