Patents by Inventor Takashi Nagase

Takashi Nagase 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: 6653023
    Abstract: A rectangular alkaline storage battery includes an electrode plate which can be easily prepared and has a high packing density of active material and volumetric energy density. A connected negative electrode plate with hydrogen-absorbing alloy negative electrode plates is bent into a U-shaped form at a central portion (connecting portion). A composite positive electrode plate is then sandwiched by the hydrogen-absorbing alloy negative electrode plates with a separator made of an unwoven polypropylene fabric provided interposed therebetween to prepare an electrode plate unit. Two such electrode plate units are then laminated to form a group of electrode plates.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 25, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masao Inoue, Takeo Hamamatsu, Takashi Nagase, Hideyuki Asanuma
  • Publication number: 20030118899
    Abstract: In a battery comprising an outer casing, positive and negative electrodes provided in the outer casing, and an electrolyte provided therebetween, the outer casing being electrically connected to one of the positive and negative electrodes to constitute one of electrode terminals, the other being connected to the other electrode terminal which is electrically insulated from the outer casing, and at least one of the positive and negative electrodes and the electrode terminal being connected to each other through a collector, the collector includes a plate-shaped body section and a connecting piece extended in an almost vertical direction from an end of the body section, and the body section or the connecting piece is provided with a bending guide section which can be bent in such a direction that the connecting piece approaches the body section.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 26, 2003
    Inventors: Satoru Kometani, Takashi Nagase, Yoshihiro Masuda, Hideyuki Asanuma, Eiji Enishi, Toshiyuki Kondo
  • Patent number: 6579640
    Abstract: A sealed rectangular battery has a conductive battery case including an external casing and a sealing cap. The external casing encloses a generator element and is sealed by attaching the sealing cap using heat. The battery includes an electrode terminal with an opposite polarity to the battery case, and a safety valve. The safety valve includes a cap that is charged with the same polarity as the battery case and a valving element that covers a vent hole. The electrode terminal and safety valve are provided separately at different positions on the battery case. This construction is simpler than conventional batteries where the safety valve is integrally formed with an electrode terminal, which means that the electrode terminal can be miniaturized. This battery also has improved internal resistance.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: June 17, 2003
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takashi Nagase, Takeo Hamamatsu, Masao Inoue, Hideyuki Asanuma, Naoyoshi Hinotsu
  • Patent number: 6338915
    Abstract: A battery structure is arranged such that an elastic valve body or the like cannot easily come off from the cover body during the production of the battery, which thereby enhances the production yield. A cover body of the invention includes a flange portion airtightly fixed to an injection port and a bulge portion protruding from the flange portion and provided with a space in which an elastic valve body is fitted (mounted). The bulge portion has an opening for ventilation provided on the side wall thereof and a protrusion at the lower end of the side wall thereof protruding inwardly of the side wall, whereby the elastic valve body can be held by the protrusion and the annular rim of the elastic valve body so that it can be prevented from coming off from the cover body. Accordingly, the elastic valve body can be prevented from coming off from the cover body due to vibration developed during the transportation of the cover body or like occasions, making it possible to enhance the production yield.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: January 15, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takashi Nagase, Takeo Hamamatsu, Masao Inoue, Hideyuki Asanuma
  • Patent number: 6329641
    Abstract: A device for controlling the temperature of a soldering iron is provided with a power source circuit 1 which generates pulses having a zero volt period &tgr;; a zero cross detecting portion 2 which generates zero cross pulses on the basis of pulses; a microcomputer unit 3 which receives the zero cross pulses at an interrupt terminal INT and at the same time controls actions of the respective portions; a heater/sensor complex body 4 which heats a soldering iron tip and at the same time detects the temperature; a switching portion 5 which carries out ON and OFF actions on the basis of control signals from the microcomputer unit 3; and an amplifying portion 6 which amplifies a sensor voltage from the heater/sensor complex body 4.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: December 11, 2001
    Assignee: Hakko Corporation
    Inventors: Mitsuhiko Miyazaki, Takashi Nagase
  • Patent number: 6281644
    Abstract: To prevent adverse effect, on machining accuracy, of cogging thrust of linear motors when used in a combined linear motor driving a machine tool. Three linear motor movers are fixedly attached to a moving table of a machine tool, while three linear motor stators are fixedly attached to a base. The three linear motors are driven in parallel to thereby drive the moving table. The respective linear motor stators are fixed to the base so as to have fixed phases relative to the base, stepwisely displaced by an electrical angle 60° whereby cogging thrust is leveled in the entire combined linear motor.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: August 28, 2001
    Assignees: Okuma Corporation, Kabushiki Kaisha Yaskawa Denki
    Inventors: Toshiteru Komatsu, Koji Eba, Katsuyoshi Kitagawa, Yasuhiro Miyamoto, Takashi Nagase
  • Patent number: 6103424
    Abstract: A rectangular battery having an electrode group which is inserted in a battery case having an airtight structure. The electrode group is formed by alternately stacking positive electrodes and negative electrodes via separators. The battery case is rectangular had has a closed bottom and an open part that is airtightly sealed by a cover. The outermost electrodes, which are located on both faces of the electrode group, are coated with an active material on a surface of a core. Furthermore, the outermost electrodes have the same polarity and the cores thereof directly contact an inside surface of the outer battery case. In one embodiment, the capacity of the outermost electrodes is smaller than the capacity of the inwardly disposed electrodes of the same polarity.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: August 15, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takeo Hamamatsu, Masao Inoue, Takashi Nagase, Satoru Kometani, Nobuyoshi Oi, Hirofumi Sako, Hiroshi Sato, Tadashi Ise, Yasushi Kuroda
  • Patent number: 5408072
    Abstract: The present invention generally relates to a high frequency soldering iron. In particular, the soldering iron of the present invention is provided with a tip which is directly heated for a quick heating to a desirable temperature set by a temperature setting means. The soldering iron is also provided with a sensor for detecting the temperature of the soldering iron tip. A temperature comparator compares the sensed tip temperature against the set soldering temperature to maintain the tip temperature constant at the set temperature.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: April 18, 1995
    Assignee: American Hakko, Inc.
    Inventor: Takashi Nagase
  • Patent number: 5366678
    Abstract: A method of manufacturing a cushion material for seat pads comprises a step for filling a mold part that will form the cushion material with a mixed fiber containing a thermofusible fiber, a step for engaging this mold part with another mold part, and a step for applying heat to a specific region of the mixed fiber that will form a bottom surface so that the thermofusible fiber in the specific region melts before the thermofusible fiber in the other region of the mixed fiber that will form a sitting surface of the cushion material.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: November 22, 1994
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Fumio Nomizo, Takashi Nagase
  • Patent number: 5117105
    Abstract: A sequence of random numbers of a desired length is produced using an algorithm for shifting a binary code M bits and adding 0 or 1 so that all produced codes are different from each other. An absolute encoder of a desired resolution is provided using such a sequence of random numbers. Where a slit pattern of M-series random number codes is employed, a circuit for generating a pattern comprising a combination of the M-series random number codes and 0s is employed to provide an absolute encoder having a resolution of 2.sup.k.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: May 26, 1992
    Assignee: Kabushiki Kaisha Yaskawa Denki Seisakusho
    Inventors: Takashi Nagase, Kouichi Higashi
  • Patent number: 4988945
    Abstract: The rotation type absolute encoder of the present invention is constituted by a magnetic type one-pulse encoder for detecting one or more rotations, and an optical type absolute encoder comprising a plural number of aspheric LED lens as a light source, a group of detecting elements corresponding to the area of the light source, a slit disc beginning from the track of two slits, and a differential input type current-to-voltage convertor. This absolute encoder is also so constructed as to back up the circuit voltage by an external battery and an internal large capacitance capacitor when a current is cut, and has a circuit for serially transmitting a signal indicating the number of rotations and the absolute angle to an external controller, and a circuit for synthesizing and outputting one reference pulse per rotation from the signals of the magnetic type one-pulse encoder and the optical type absolute encoder.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: January 29, 1991
    Assignee: Kabushiki Kaisha Yaskawa Denki Seisakusho
    Inventor: Takashi Nagase
  • Patent number: 4900489
    Abstract: A method is provided for producing an integral skin foam article made up of a skin, foam and core member. According to the method, an expanded layer which is of the same material as the skin is formed on the back of the skin prior to forming the article.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: February 13, 1990
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Nagase, Yoshio Taguchi
  • Patent number: 4867660
    Abstract: The foam slush molding apparatus of this invention comprises a mold and a hot air jacket, and an optional heat retaining hood. The hot air jacket and the optional heat retaining hood are provided along and a certain distance apart from the molding surface on which a resin is heated and fused. The molding surface and the jacket form a first hot air chamber for heating, and the jacket and the optional heat retaining hood form an optional second hot air chamber for heat retention. The apparatus permits uniform heating and foaming at an efficient molding cycle.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: September 19, 1989
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Nagase, Yoshio Taguchi