Patents by Inventor Yoshio Watanabe

Yoshio Watanabe 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: 5232943
    Abstract: Antibiotic Mer-AF1032A represented by the following formula (I) and its isomer antibiotic Mer-AF1032B are disclosed. Also disclosed are a method for preparing the antibiotics comprising the cultivation of a strain belonging to genus Penicillium and a pharmaceutical composition comprising one of these antibiotics and useful as an antifungal agent.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: August 3, 1993
    Assignee: Mercian Corporation
    Inventors: Hitosi Agematu, Yoshio Watanabe, Hiroyuki Chiba, Rei Kaneto, Norio Shibamoto, Takeo Yoshioka, Toshihiko Kumamoto, Hiroshi Nishida, Rokuro Okamoto
  • Patent number: 5225732
    Abstract: A gas discharge-type display panel which comprises a front side glass substrate having a pattern of an anode on one side thereof and a rear side glass substrate having a pattern of a cathode in face-to-face and spaced relation with the anode. The substrates are assembled to seal off so that discharge spaces are created between the substrates. The cathode is made of a conductive composite oxide having a perovskite structure of a K.sub.2 NiF.sub.4 -type structure with significantly improved discharge characteristics and a prolonged life.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: July 6, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Watanabe, Toshiharu Hoshi
  • Patent number: 5223519
    Abstract: 4-Hydroxypyridine derivative represented by the following formula ##STR1## wherein R represents a methyl group or an isopropyl group, and the method for preparing the derivative comprising the step of cultivating a strain belonging to Streptomyces karnatakensis are disclosed. Also disclosed are the pharmaceutical composition comprising the same and a method for treating circulatory diseases comprising the step of administering said compound to a patient.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: June 29, 1993
    Assignee: Mercian Corporation
    Inventors: Shin-ichi Hirano, Yoshio Watanabe, Kaichiro Kominato, Naoki Agata, Yutaka Hara, Norio Shibamoto, Takeo Yoshioka, Tomoyuki Kioka, Hiroshi Iguchi, Masataka Shirai, Hiroshi Tone, Rokuro Okamoto
  • Patent number: 5212097
    Abstract: Catecholamines in a living body fluid are analyzed by a process which involves reacting a living body fluid sample with a boron compound of the formula: ##STR1## wherein R is hydroxyl, aryl or alkyl, to form a complex of the boron compound with a catecholamine; deproteinizing the reaction solution containing the complex; decomposing the complex to release the catecholamine; labeling the released catecholamine to form a labeled catecholamine; eluting the labeled catecholamine adsorbed on a separation column; and detecting the eluted, labeled catecholamine. Advantageously, this process enables catecholamines to be measured with a high recovery ratio and high accuracy by forming the catecholamines into a complex with a boron compound.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: May 18, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Masao Kamahori, Mamoru Taki, Junkichi Miura, Taro Nogami, Yoshio Watanabe
  • Patent number: 5207771
    Abstract: A radial plunger type pump includes a housing, an eccentric cam shaft rotatably supported by the housing, a pair of bearings for supporting the cam shaft in the housing, a radial plunger reciprocally disposed in a cylinder of the housing and reciprocating within the cylinder of the housing in accordance with the eccentric rotation of a cam portion of the eccentric cam shaft. The pump further includes a pair of counterweights disposed in spaces provided between the bearings and the cam portion of the eccentric cam shaft, the pair of counterweights including a counterweight portion for balancing the rotation of the eccentric cam shaft and washer portion for preventing the plunger from axial movement wherein the counterweight portion and and washer portion are integrally secured and wherein the counterweights are engaged with the eccentric cam shaft for preventing the relative rotation therewith.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: May 4, 1993
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Masakazu Sugisaw, Yoshio Watanabe
  • Patent number: 5200762
    Abstract: An image forming apparatus comprising a recording medium having a recording layer which has a characteristic in which a receding contact angle decreases when the recording layer is heated in a condition where the recording layer is in contact with a liquid, the recording medium being moved by an external driving mechanism in a predetermined direction, a supplying head for supplying a liquid to a predetermined area on a surface of the recording layer of the recording medium, the supplying head comprising a narrow path for leading the liquid to the surface of the recording layer due to a capillary attraction, and a thermal head for selectively heating the surface of the recording layer of the recording medium in accordance with image information, wherein an area on the surface of the recording layer is heated and brought in contact with the liquid so that the area changes to a liquid adhesive area, and wherein a visible image corresponding to the image information is formed on the surface of the recording layer
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: April 6, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuo Katano, Yasuyuki Okada, Takeshi Takemoto, Akira Oyamaguchi, Yoshio Watanabe
  • Patent number: 5180920
    Abstract: A charged particle beam exposure method is used to expose an exposure region of a substrate which is placed on a movable stage by irradiating a charged particle beam on the exposure region of the substrate. The method includes the steps of (a) dividing the exposure region into a plurality of band-shaped regions, (b) deflecting the charged particle beam within a drawing range from one side to the other side of each band-shaped region in a longitudinal direction of the band-shaped region while continuously moving the stage in a stage moving direction, where the drawing range is a range in which the charged particle beam can be deflected, (c) monitoring a deflection position of the charged particle beam on the substrate along the stage moving direction, and (d) varying a moving speed of the stage depending on the deflection position relative to one or a plurality of reference positions located along the stage moving direction within the drawing range.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: January 19, 1993
    Assignee: Fujitsu Limited
    Inventors: Junichi Kai, Hiroshi Yasuda, Yoshio Watanabe
  • Patent number: 5167006
    Abstract: A neuron unit processes a plurality of input signals and outputs an output signal which is indicative of a result of the processing. The neuron unit includes input lines for receiving the input signals, a forward process part including a supplying part for supplying weight functions and an operation part for carrying out an operation on each of the input signals using one of the weight functions and for outputting the output signal, and a self-learning part including a generating part for generating new weight functions based on errors between the output signal of the forward process part and teaching signals and a varying part for varying the weight functions supplied by the supplying part of the forward process part to the new weight functions generated by the generating part.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: November 24, 1992
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiyuki Furuta, Hiroyuki Horiguchi, Hirotoshi Eguchi, Yutaka Ebi, Tatsuya Furukawa, Yoshio Watanabe, Toshihiro Tsukagoshi
  • Patent number: 5149178
    Abstract: A hydraulic braking system for an automotive vehicle having a master cylinder communicated with a wheel brake cylinder through a primary passage, and an anti-skid apparatus including a fluid pump which is disposed in a recirculation passage connected to the primary passage. An orifice is disposed in the recirculation passage on a discharge side of said fluid pump. In parallel with the orifice, a relief valve is disposed. The relief valve permits a flow of a brake fluid from the fluid pump to the primary passage when a differential pressure between the pressures on the upstream side and downstream side of the orifice exceeds a predetermined value. Consequently, a discharge pulsation of the fluid pump is effectively reduced.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 22, 1992
    Assignee: Aisin Seiki K.K.
    Inventors: Tadao Saito, Masakazu Sugisawa, Yoshio Watanabe
  • Patent number: 5132012
    Abstract: A liquid chromatograph comprises an analyzing chip in which a capillary is formed in a substrate and a detector section is disposed downstream of the capillary. The capillary is covered so that an inlet opening end and an outlet opening end of said capillary flow path is opened. A frame member has a sample introduction path, a carrier liquid introduction path and a liquid discharge path. The analyzing chip is movably disposed in the frame member so that the inlet opening end and the outlet opening end of the capillary are selectively in communication with and/or under interruption against said sample introduction path, the carrier liquid introduction path and the liquid discharge path. The liquid chromatograph is very small in size but is easy to handle. Incidentally, there is disclosed also a sample introduction apparatus and method for the chromatograph, and an FET type detector suitable for the chromatograph.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: July 21, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Junkichi Miura, Andreas Manz, Yoshio Watanabe, Yuji Miyahara, Hiroyuki Miyagi, Keiji Tsukada
  • Patent number: 5111148
    Abstract: A battery voltage discriminator circuit for an apparatus having a battery and a plurality of loads which are driven by the battery and operate under various kinds of load conditions is disclosed. When the output voltage of said battery means drops under a predetermined reference voltage, the circuit generates a signal indicative of the voltage drop. The circuit has a reference voltage setting circuit for setting the reference voltage to one of predetermined values, which corresponds to the kind of the current load condition, and a reference voltage change circuit for activating the reference voltage setting circuit for a period of time in response to the change in the kind of current load condition.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: May 5, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Seiiti Senoo, Yoshio Watanabe
  • Patent number: 5093267
    Abstract: Catecholamines can be detected with high sensitivity in a shortened time period, by introducing a sample containing catecholamines into an adsorption column packed with an adsorbent to adsorb catecholamines to the column, then introducing a reagent for derivatization to effect pre-column labeling and then analyzing the pre-column labeled catecholamines by means of high performance liquid chromatography. Connection of the adsorption column and a separation column of high performance liquid chromatography via a fluid path changeover valve enables to automated analysis of catecholamines.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: March 3, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Junkichi Miura, Mamoru Taki, Yoshio Watanabe, Masao Kamahori, Hiroyuki Miyagi
  • Patent number: 5027005
    Abstract: A logic circuit comprises a first terminal for receiving an input data signal, a second terminal for receiving a clock signal, a first latch circuit coupled to the first and second terminals for latching the input data signal responsive to the clock signal, a second latch circuit coupled to the first latch circuit for latching an output signal of the first latch circuit, a third terminal for outputting an output data signal which is output from the second latch circuit, and a selecting part coupled to the third terminal for selectively feeding back the output data signal to the first latch circuit in a first mode and for cutting off the feedback of the output data signal to the first latch circuit in a second mode, where the logic circuit operates as a toggle flip-flop in the first mode and operates as a delay flip-flop in the second mode. The input data signal received by the first terminal selectively identifies one of the two modes of the flip-flop.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: June 25, 1991
    Assignee: Fujitsu Limited
    Inventors: Tatsuaki Kitsuta, Isao Shimotsuhama, Yoshio Watanabe, Masahiro Tanaka, Shinichi Shiotsu, Kazumi Ogawa
  • Patent number: 5016045
    Abstract: An image reading apparatus is provided which comprises an original table cover having an image projection window, and a lid member having a reflector on the inner surface thereof, movably attached to the original table cover. Image projection light from a projector placed on the original table cover is reflected by the reflector on the lid member, and focused on a glass original table.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: May 14, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoshio Watanabe
  • Patent number: 5007682
    Abstract: A vehicular seat assembly is disclosed which comprises two seat sliders each including a lower rail secured to a vehicular floor and an upper rail sidably disposed on the lower rail; a seat frame securely mounted on the upper rails of the seat sliders; a seat cushion mounted on the seat frame; a side decorative panel attached to one lateral side of the seat frame for concealing unsightly portions; and a projection integrally formed on the side decorative panel, the projection being seated on the upper rail of one of the seat sliders.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: April 16, 1991
    Assignee: Ikeda Bussan Co., Ltd.
    Inventors: Isao Kuwabara, Yoshio Watanabe, Susumu Yoshimura, Hidekazu Maruyama
  • Patent number: 5005434
    Abstract: An autosampler consists of a needle to draw specimen from a specimen container into a passage therein; a block having a passage that follows the passge in the needle; a suction mechanism for drawing in the specimen by suction through the passages in the needle and the block; a discharge mechanism for discarding the specimen drawn in by the suction mechanism; and a detecting device for detecting air bubble in the specimen, the detecting device being embedded in the block in such a manner as to face the passage in the block. The detecting device detects the air bubbles in the specimen according to changes in physical or chemical properties of the specimen passing through the passage in the block. The discharge mechanism is activated by the detecting device to discharge air-mixed specimen.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: April 9, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Yoshio Watanabe, Mamoru Taki, Junkichi Miura, Masao Kamahori, Hiroyuki Miyagi, Yasuhide Matsumura, Masafumi Kanetomo
  • Patent number: 5001361
    Abstract: A master-slave flip-flop circuit is made up of a master part which holds a data signal responsive to a clock signal and outputs the held data signal in the form of complementary output signals, and a slave part which holds the complementary output signals responsive to the clock signal and outputs at least one of the held complementary output signals. The complementary output signals of the master part have a logic amplitude which is smaller than a logic amplitude of the output signal of the slave part to ensure correct operation even when the data signal and the clock signal have high frequencies.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: March 19, 1991
    Assignee: Fujitsu Limited
    Inventors: Masaya Tamamura, Shinji Emori, Yoshio Watanabe, Isao Shimotsuhama
  • Patent number: 4987345
    Abstract: A plasma ion source comprises coaxially oriented electrodes of which a first electrode has the shape of a rod and a second electrode an annular shape, positioned in a space filled with a gas of atomic number greater than that of Boron, a current source up to 100 KA to be reacted within 1 usec and structure for focussing ions located near a formed pinch plasma.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: January 22, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Hans-Peter Stormberg, Yoshio Watanabe, Isao Ochiai
  • Patent number: 4970607
    Abstract: A full-size image sensor includes a plurality of photoelectric conversion elements formed on a substrate and arranged into a line. A photosensitive surface of each of the photoelectric conversion elements is perpendicular to a document to be scanned. A transparent layer is formed on the substrate so as to cover the photoelectric conversion elements. A light reflecting layer made of a light interrupting member is formed on the transparent layer so as to prevent light emitted from a light source from being directly projected onto the photoelectric conversion elements. The light emitted from the light source is reflected on the document and then projected onto the photoelectric conversion elements directly or after being reflected by the light reflecting layer.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: November 13, 1990
    Assignee: Ricoh Company, Ltd.
    Inventors: Masanori Itagaki, Yoshio Watanabe
  • Patent number: 4954438
    Abstract: This invention relates to a process for preparing an antibiotic D788-7 wherein, after culturing carborubicin-producing bacteria, the obtained culture liquid is extracted in acidic conditions while stirring to be absorbed to synthetic resin, followed by desorption from the resin and elution with acetone and the resulting acetone solution containing carborubicin is converted into an antibiotic D788-7 by photo radiation, for obtaining D788-7 in the purified form from the reaction solution. The production yield for D788-7 is extremely high and its use as an antitumor agent can be made possible.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: September 4, 1990
    Assignee: Sanraku Incorporated
    Inventors: Akihiro Yoshimoto, Osamu Jodo, Yoshio Watanabe, Rokuro Okamoto, Tomio Takeuchi