Patents by Inventor Takashi Yamanaka

Takashi Yamanaka 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: 20020012149
    Abstract: A compact multifunctional optical communication device and its control method is provided which having good responsibility. An optical communication device has an input section and an output section for propagating a light beam through a space; plural optical parts movable to an interrupting position of the light beam between the input section and the output section, and arranged in a series direction with the light beam; driving means for separately driving these optical parts; and driving control means for controlling an operation of this driving means.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 31, 2002
    Inventors: Takashi Yamanaka, Masao Kasuga, Akihiro Iino, Kenji Suzuki, Tomohiro Shimada
  • Patent number: 6338232
    Abstract: A waterproof sheet fixing member for fixing a waterproof thermoplastic resin sheet on a structure to be waterproofed, includes a plate-like main member made of thermoplastic resin, and a conductive multi-aperture sheet having an upper surface and a lower surface. The conductive multi-aperture sheet has a plurality of joining apertures each communicating the upper surface with the lower surface, and is integrally provided in the main member. A method of fixing the waterproof thermoplastic resin sheet includes the steps of fixing the fixing member on a surface of the structure, spreading the waterproof thermoplastic resin sheet on the surface of the structure, and induction heating the conductive multi-aperture sheet via the waterproof thermoplastic resin sheet to melt a portion where the main member contacts the waterproof thermoplastic resin sheet. Thus, the main member is integrally welded to the waterproof thermoplastic resin sheet.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: January 15, 2002
    Assignee: Tsutsunaka Plastic Industry Co., Ltd.
    Inventors: Takashi Yamanaka, Masaya Sera, Yasuo Kumamoto, Takatoshi Imafuku
  • Patent number: 6330216
    Abstract: Provision of a recording medium transfer apparatus, which uses a one-direction motor as a drive source and is simple in construction and inexpensive. The apparatus comprises a rotation member driven for rotation by the one-direction motor, an idler gear, and transfer means. The rotation member has a partial gear and a push member. The partial gear is held in mesh with the idler gear only during rotation of the rotation member for a predetermined angle. The transfer means has a gear portion in mesh with the idler gear and a contact portion. The transfer means is caused, with the contact portion thereof pushed by the push member, to undergo rocking movement in one direction and, after separation of the push member from the contact portion, the transfer means is rocked in the other direction with the partial gear in mesh with the idler gear. The recording medium is thus reciprocally transferred by the transfer means with reciprocal rocking movement thereof caused during one rotation of the rotation member.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: December 11, 2001
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shozo Nishimura, Takashi Yamanaka, Akeshi Shitamichi, Shigeru Akatani
  • Patent number: 6291508
    Abstract: Mono- or polyenic carboxylic acid derived compounds of the formula (1-I) or a physiologically acceptable salt thereof: Z—(CR3═CR2)n—COOR1  (1-I) wherein R1 is hydrogen or a carboxyl-protecting group; R2 and R3 are each independently hydrogen, halogen, linear lower alkyl, branched lower alkyl linear lower alkoxy, branched lower alkoxy or aryl, m is 1 to 3 and Z is a group or their salts have the potent ability to bind to retinoic acid receptors thus useful in treating psoriasis and rheumatoid arthritis.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: September 18, 2001
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeki Hibi, Kouichi Kikuchi, Hiroyuki Yoshimura, Mitsuo Nagai, Katsuya Tagami, Shinya Abe, Ieharu Hishinuma, Junichi Nagakawa, Norimasa Miyamoto, Takayuki Hida, Aichi Ogasawara, Seiko Higashi, Kenji Tai, Takashi Yamanaka, Makoto Asada
  • Publication number: 20010014076
    Abstract: A disc clamping device according to the invention seeks to attain size reduction and simplification of the structure without spoiling the smoothness of centering a disc. A disc clamper has an upwardly projecting central hung pin penetrating a circular hole formed in a clamp support member and having a head greater in diameter than the circular hole. At least either one of the portions of the edge of the circular hole and the head of the hung pin in engagement with each other is formed with a tapered surface for centering the disc clamper. The clamp support member is provided with an elastic member, for instance a leaf spring, for pushing the head against the edge of the circular hole.
    Type: Application
    Filed: February 7, 2001
    Publication date: August 16, 2001
    Applicant: Tanashin Denki Co., Ltd.
    Inventor: Takashi Yamanaka
  • Publication number: 20010011859
    Abstract: An ultrasonic motor driven by a self-oscillation circuit which can be mounted in an electronic device without imposing structural restrictions on the electronic device and can thus be used easily. Among an oscillating member for generating an oscillatory wave, a pressing mechanism for causing a moving body to make pressing contact with the oscillating member, a moving body frictionally driven by the oscillatory wave, and outputting means for transmitting an output from the moving body to the outside, at least one member is made of an insulating material, and when in particular the moving body is provided with outputting means for transmitting an output torque this outputting means is made of an insulating material and no restrictions are imposed on the shapes and the materials of the oscillating member and the moving body, which closely relate to the output performance of the ultrasonic motor.
    Type: Application
    Filed: August 28, 1998
    Publication date: August 9, 2001
    Inventors: TAKASHI YAMANAKA, MASAO KASUGA, AKIHIRO IINO, KENJI SUZUKI
  • Patent number: 6204938
    Abstract: A linear illumination device, includes: a light conducting body; a light diffusion portion formed at least on one side surface in a longitudinal direction of the light conducting body; a light output portion formed in a portion of the light conducting body opposing the light diffusion portion; a light source portion disposed at a first end of the light conducting body; and a light reflecting layer provided at a second end opposing the first end of the light conducting body.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: March 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiro Horiuchi, Kohichi Takesako, Takashi Yamanaka, Yoshihiko Chosa, Tetsuro Nakamura
  • Patent number: 6201782
    Abstract: Provision of a disc loading apparatus for a disc player, which permits a disc being inserted to be safely pulled out without being held between a turntable and a clamper. A clamper supporting member having an engagement portion carries the clamper, and a stopper is disposed on the line of movement of the engagement portion. The stopper is normally at a preventing position of being in contact with the engagement portion to prevent the clamper from approaching the turntable. When a disc has been inserted up to a position that it can be held on the turntable, it pushes the stopper to an approach allowable position to allow the clamper to approach the turntable. When the clamper approaches the turntable, the stopper is pushed by the engagement portion of the clamper supporting member to a retreated position, at which the stopper is out of contact with the disc.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: March 13, 2001
    Assignee: Tenashin Denki Co., Ltd
    Inventors: Shinsaku Tanaka, Takashi Yamanaka, Akeshi Shitamichi, Shigeru Akatani, Kunio Kido
  • Patent number: 6177754
    Abstract: An ultrasonic motor has a piezoelectric element having an electrode pattern and driven by a voltage signal to undergo expansion and compression. An oscillator is connected to the piezoelectric element and is vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. A rotor is disposed on the oscillator to be frictionally driven by expansion and compression movement of the piezoelectric element. A pivot member is connected to a central portion of the rotor. A pressing member is in pressure contact with the pivot member for urging the rotor into pressure contact with the oscillator. The pressing member and the pivot member are comprised of different materials, and the material of the pivot member has a hardness greater than that of the pressing member.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: January 23, 2001
    Assignee: Seiko Instruments Inc.
    Inventors: Makoto Suzuki, Akihiro Iino, Masao Kasuga, Kenji Suzuki, Takashi Yamanaka
  • Patent number: 6173132
    Abstract: It is an object of the present invention to provide an energy-saving image forming apparatus capable of fixing toner in a reliable manner to enhance the quality of images, control the temperature of toner residue to reuse the toner in a reliable manner, and reduce the power consumption of the apparatus. In a copier, a photoconductive drum carries a toner image to be transferred to a recording medium, a heater of a fixing unit fixes the transferred toner image on the recording medium, and a cleaning unit removes toner residue on the photoconductive drum after transfer. The whole copier is covered with a housing, a first ventilation system ventilates the inside and outside of the housing, and a controlling section regulates the amount of ventilation by the first ventilation system in accordance with an output from a temperature sensor for detecting the temperature of the cleaning unit. As a result, it is possible to effectively reuse the collected toner and ensure excellent quality images.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: January 9, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Kida, Masao Matsui, Takashi Yamanaka
  • Patent number: 6169719
    Abstract: In a car-mounted disc/tape player, in which a disc player and a tape player are assembled in a substantially rectangular cabinet capable of being accommodated in a predetermined accommodation space in a car, it is sought to reduce the player size so as to be above to conform to the DIN Standard. A disc insertion slot is disposed above and leftwardly of a cassette insertion slot. A disc drive motor is disposed forwardly of a tape drive motor. The bottom surface of the disc drive motor is set to be at a level below the top surface of the tape drive motor. A zone of movement of a pick-up is defined in a space between the disc drive motor and the left front corner of the cabinet.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: January 2, 2001
    Assignee: Tenashin Denki Co., Ltd.
    Inventors: Takashi Yamanaka, Shozo Nishimura
  • Patent number: 6133283
    Abstract: To provide novel compounds relating to retinoid which can substitute for retinoic acid used for preventing and treating several diseases and having antagonism against retinoid. Heterocyclic compounds represented by the general formula (1-I) or physiologically acceptable salts thereof:Z--(CR.sup.3 .dbd.CR.sup.2).sub.n --COOR.sup.1-- (1-I)Compounds represented by the general formula (2-I) or physiologically acceptable salts thereof: ##STR1## The compounds according to the present invention exhibit extremely high ability to bind RARs and are effective for treating various kind of diseases such as abnormality in cornification and rheumatoid arthritis.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: October 17, 2000
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeki Hibi, Kouichi Kikuchi, Hiroyuki Yoshimura, Mitsuo Nagai, Katsuya Tagami, Shinya Abe, Ieharu Hishinuma, Junichi Nagakawa, Norimasa Miyamoto, Takayuki Hida, Aichi Ogasawara, Seiko Higashi, Kenji Tai, Takashi Yamanaka, Makoto Asada
  • Patent number: 6104124
    Abstract: An ultrasonic motor has a piezoelectric element driven by application of a voltage thereto to undergo expansion and contraction. A vibrating body is vibrationally driven by the expansion and contraction movement of the piezoelectric element to thereby produce standing waves. A moving body is frictionally driven by the standing waves of the vibrating body. Power transmission projections apply a frictional force to the moving body to thereby frictionally drive the moving body in accordance with the standing waves. The power transmission projections are disposed only every preselected number of wavelengths at intermediate positions between loops and nodes of the standing waves, the preselected number being a natural number.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: August 15, 2000
    Assignee: Seiko Instruments Inc.
    Inventors: Kenji Suzuki, Akihiro Iino, Masao Kasuga, Makoto Suzuki, Takashi Yamanaka
  • Patent number: 6084838
    Abstract: Provision of a disc transfer apparatus for a disc player, which is free from damage to disc, small in size and simple in construction. A push-back member and a main push member are rockably mounted on one side of the passage of disc, and a disc guide is provided on the other side of the passage of the disc. The push-back member and the main push member are coupled together by a cam mechanism, and the push-back member is reciprocally driven by a driving means. The disc is transferred to a playing portion by pushing its edge with the main push member, and is transferred from the playing portion toward a disc insertion slot by pushing its edge with the push-basc member.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: July 4, 2000
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Takashi Yamanaka, Akeshi Shitamichi, Shigeru Akatani, Kunio Kido
  • Patent number: 6030964
    Abstract: Compounds of the formula and compounds of the formula ##STR1## or their salts have the potent ability to bind to retinoic acid receptors thus useful in treating psoriasis and rheumatoid arthritis.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: February 29, 2000
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeki Hibi, Kouichi Kikuchi, Hiroyuki Yoshimura, Mitsuo Nagai, Katsuya Tagami, Shinya Abe, Ieharu Hishinuma, Junichi Nagakawa, Norimasa Miyamoto, Takayuki Hida, Aichi Ogasawara, Seiko Higashi, Kenji Tai, Takashi Yamanaka, Makoto Asada
  • Patent number: 5977125
    Abstract: Compounds of the formula ##STR1## and compounds of the formula ##STR2## or their salts have the potent ability to bind to retinoic acid receptors thus useful in treating psoriasis and rheumatoid arthritis.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: November 2, 1999
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeki Hibi, Kouichi Kikuchi, Hiroyuki Yoshimura, Mitsuo Nagai, Katsuya Tagami, Shinya Abe, Ieharu Hishinuma, Junichi Nagakawa, Norimasa Miyamoto, Takayuki Hida, Aichi Ogasawara, Seiko Higashi, Kenji Tai, Takashi Yamanaka, Makoto Asada
  • Patent number: 5921537
    Abstract: A post-processing apparatus of a digital image forming apparatus includes first and second bins for storing recorded matter which was output from the digital image forming apparatus and distributed to the respective bins based on image information data such as the name of data contained in the image information relating to the recorded matter. Each of the first and second bins has a display device for displaying the image information data corresponding to recorded matter to be stored in the respective bins, such as the sender of facsimile, the name of data and the name of client who output the data. By displaying on the bins the image information data belonging to the recorded matter, such as the sender of facsimile, the name of data and the name of client who output the data, the operator can easily find the target recorded matter.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: July 13, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masao Matsui, Keiji Masuda, Takashi Yamanaka
  • Patent number: 5913093
    Abstract: Structure is provided to efficiently discharge sheets outputted from an image forming apparatus to a plurality of bins. In a copier, for an original supplied from a document feeder, an image forming apparatus forms an image on a sheet supplied from a sheet feeder, and the sheet is discharged through a sheet discharging port. A sheet outputting apparatus receives discharged sheets through a sheet receiving port. In accordance with information of a job relating to the sheets copied supplied through an operation panel, a control unit causes the sheets to be distributed to be discharged to a plurality of bins. The number of acceptable sheets to each bin is detected by a detecting device. A control unit controls discharge of sheets to that the number of bins is a minimum, so that discharge to bins is easily conducted in a subsequent copying job.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: June 15, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Yamanaka, Toyoaki Nanba, Tomomi Tanaka, Masao Matsui
  • Patent number: 5861418
    Abstract: To provide a compound which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio. An aminobenzoic acid derivative represented by the general formula (I) or (II) or a pharmacologically acceptable salt thereof: ##STR1## ?wherein R.sup.1 represents a group represented by the formula: ##STR2## {wherein A represents a group represented by formula --CH.sub.2 --X--CH.sub.2 -- (wherein X represents O, >N--R.sup.6 or>CHR.sup.7 (wherein R.sup.6 represents lower alkyl and R.sup.7 represents hydrogen or lower alkoxy)), etc.; D and E each represents a group represented by formula --(CH.sub.2).sub.3 --, etc., and R.sup.2 represents lower alkyl, etc.}; R.sup.9 represents alkynyl; R.sup.10 represents amino, etc-; R.sup.11 represents halogen; R.sup.12 and R.sup.13 each represent lower alkyl; a is an integer of 1 to 5; and b is an integer of 0 to 5!.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: January 19, 1999
    Assignee: Eisai Co., Ltd.
    Inventors: Shuhei Miyazawa, Yorihisa Hoshino, Hisashi Shibata, Kazuo Hirota, Takaaki Kameyama, Shinya Abe, Takashi Yamanaka
  • Patent number: 5854279
    Abstract: The present invention provides a therapeutic agent for fundamentally preventing, treating or ameliorating dermatosis, such as, non-infectious dermatosis, which include psoriasis and atopic dermatitis. The therapeutic agent comprises a glycerol derivative represented by the formula (I): ##STR1## wherein A is a group represented by the formula: ##STR2## or single bond; R.sup.1 is a group represented by the formula: ##STR3## wherein R.sup.2 is a methoxyphenyl group or methyl group, X is an atom or atomic group which may become an anionor a group represented by the formula: ##STR4## or a pharmacologically acceptable salt thereof as an active ingredient.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: December 29, 1998
    Assignee: Eisai Co., Ltd
    Inventors: Akiko Nakahama, Koukichi Harada, Toshihiko Yamauchi, Takashi Yamanaka, Isao Yamatsu