Patents by Inventor Kunihiko Watanabe

Kunihiko 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).

  • Publication number: 20130157342
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Application
    Filed: June 26, 2012
    Publication date: June 20, 2013
    Applicant: Ajinomoto Co., Inc.
    Inventors: Masakazu SUGIYAMA, Kunihiko Watanabe, Shigeru Kawahara
  • Publication number: 20130084610
    Abstract: It is an object of the present invention to provide a procedure for realizing inexpensive and simple production of 3-indole-pyruvic acid. A transformant is made using a polynucleotide having a specific nucleotide sequence encoding a protein having an oxidase activity, and oxidase is generated by culturing the transformant in a medium to accumulate the oxidase in the medium and/or the transformant. Further, tryptophan is converted into 3-indole-pyruvic acid in the presence of the transformant and/or a culture thereof to produce 3-indole-pyruvic acid.
    Type: Application
    Filed: November 26, 2012
    Publication date: April 4, 2013
    Inventors: Yasuaki TAKAURA, Seiichi Hara, Toshiki Taba, Shunichi Suzuki, Masakazu Sugiyama, Kunihiko Watanabe, Kenzo Yokozeki
  • Patent number: 8394940
    Abstract: It is an object of the present invention to provide a procedure for realizing inexpensive and simple production of 3-indole-pyruvic acid. A transformant is made using a polynucleotide having a specific nucleotide sequence encoding a protein having an oxidase activity, and oxidase is generated by culturing the transformant in a medium to accumulate the oxidase in the medium and/or the transformant. Further, tryptophan is converted into 3-indole-pyruvic acid in the presence of the transformant and/or a culture thereof to produce 3-indole-pyruvic acid.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: March 12, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yasuaki Takakura, Seiichi Hara, Toshiki Taba, Shunichi Suzuki, Masakazu Sugiyama, Kunihiko Watanabe, Kenzo Yokozeki
  • Patent number: 8395154
    Abstract: In a portion of a gate signal line and a portion of a common signal line, cutouts which are arranged perpendicular to the extending direction of these lines and open to face each other in an opposed manner are formed. A cruciform shape in appearance is formed by combining a gap defined between the gate signal line and the common signal line extending parallel to each other and the cutouts to each other. The cruciform portion formed in this manner is used as an alignment mark in the exposure of a photolithography step of a layer formed later. Due to such a constitution, in manufacturing a thin film transistor substrate, it is possible to realize the highly accurate alignment without forming a pattern only used for alignment.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: March 12, 2013
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yuuki Kamata, Yuuichi Nishimura, Kunihiko Watanabe
  • Patent number: 8372607
    Abstract: The present invention describes a method for generating a serine derivative and an optically active isomer thereof by a convenient technique, and an enzyme and the like useful in the method. In the presence of the following protein (A) and/or (B) having an enzymatic activity, an ?-amino acid is reacted with an aldehyde to form a serine derivative: (A) a protein comprising the amino acid sequence of SEQ ID NO:5, and (B) a protein comprising an amino acid sequence of SEQ ID NO: 5, but which includes substitution, deletion, insertion and addition of one or more amino acids and is able to catalyze the reaction to form the serine derivative.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: February 12, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Shinji Kuroda, Masakazu Sugiyama, Kunihiko Watanabe, Shunichi Suzuki, Kenzo Yokozeki, Tatsuki Kashiwagi
  • Patent number: 8364212
    Abstract: The present invention has an object of attaining further miniaturization and reducing the thickness of a portable wireless device with a built-in antenna. The cellular telephone device 1 according to the one embodiment of the present invention includes a case body 60 having a first case portion 62 which is arranged so as to cover the electronic components, along with being electrically conductive to the reference potential pattern, and a nonconductive second case portion 64 arranged to be continuous to the first case portion 62 along with being arranged in the outer periphery of the circuit substrate 70. In the portion that is arranged to be layered in the second case portion 64 in a flexible wiring substrate 50, an antenna element 66 is arranged.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: January 29, 2013
    Assignee: Kyocera Corporation
    Inventors: Kenji Waku, Kunihiko Watanabe, Yasuhiro Abe, Tei Riku
  • Patent number: 8273556
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 25, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Shigeru Kawahara
  • Patent number: 8219143
    Abstract: A portable wireless device includes a first communication unit having a loop antenna that communicates with external devices using a first usable frequency band, and an RFID chip that performs predetermined processing with respect to information communicated by the loop antenna. A second communication unit includes a main antenna that communicates by a second usable frequency band that is higher than the first usable frequency band, and a communication processing unit that performs predetermined processing with respect to information communicated by the main antenna. A reactance component of the loop antenna is adjusted such that a high-order secondary resonance point of the first usable frequency band does not overlap the second usable frequency band.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 10, 2012
    Assignee: Kyocera Corporation
    Inventors: Kenji Waku, Tadeshi Koyama, Kunihiko Watanabe, Masato Harikae, Shin Takahashi, Daisuke Togashi, Yoshiaki Hiraoka
  • Patent number: 8202711
    Abstract: The present invention relates to a process for producing efficiently glutamic acid derivatives (including salts thereof) such as monatin by converting a substituted ?-keto acid of formula (1) into a glutamic acid derivative of formula (2) in the presence of an enzyme catalyzing conversion of the same.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: June 19, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Nao Funakoshi, Yusuke Amino, Shigeru Kawahara, Tadashi Takemoto
  • Publication number: 20120040416
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Application
    Filed: September 30, 2011
    Publication date: February 16, 2012
    Applicant: Ajinomoto Co., Inc.
    Inventors: Masakazu SUGIYAMA, Kunihiko Watanabe, Shigeru Kawahara
  • Patent number: 8089575
    Abstract: A display device includes a sequentially stacked body formed of a gate signal line, an insulation film, a semiconductor layer and a conductor layer on a substrate. The conductive layer forms a drain electrode and a source electrode of a thin film transistor which are arranged with a channel region of the semiconductor layer therebetween, and one of the drain and source electrode is formed in an approximately U shape having an open-ended one end side and a connecting portion on another end side so that the one electrode surrounds a distal end portion of another electrode as viewed in a plan view, and a projecting portion is formed on a side of the connecting portion opposite to the another electrode.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: January 3, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Miyo Ishii, Junichi Uehara, Kunihiko Watanabe
  • Patent number: 8058034
    Abstract: A D-aminotransferase can be modified so as to efficiently produce (2R,4R)-monatin having high sweetness intensity from 4-(indol-3-ylmethyl)-4-hydroxy-2-oxoglutaric acid by substituting an amino acid at least at one of positions (positions 100, 180 to 183, 243 and 244) involved in efficiently producing the (2R,4R)-monatin in an amino acid sequence of a wild-type D-aminotransferase represented in SEQ ID NO:2.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: November 15, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Tatsuki Kashiwagi, Ei-ichiro Suzuki
  • Patent number: 8058038
    Abstract: 4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxalacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 15, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Shigeru Kawahara
  • Publication number: 20110273358
    Abstract: Provided is a portable terminal that can suppress reduction of antenna sensitivity.
    Type: Application
    Filed: December 25, 2009
    Publication date: November 10, 2011
    Applicant: KYOCERA CORPORATION
    Inventors: Tadashi Koyama, Kunihiko Watanabe
  • Patent number: 8048647
    Abstract: The present invention relates to a method for producing optically active IHOG, which can in turn be used for the production of monatin. The present invention further relates to a method for producing optically active monatin, and aldolase used for these methods. As such, the present invention enables the synthesis of 4-(Indole-3-ylmethyl)-4-hydroxy-2-oxoglutaric acid with high optical purity, which is useful as an intermediate in the synthesis of optically active monatin, from indole pyruvic acid and pyruvic acid (or oxaloacetic acid).
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: November 1, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Kenichi Mori, Hiroyuki Nozaki
  • Patent number: 8043836
    Abstract: The present invention is to provide an industrially advantageous method for producing an amino acid derivative. Provided is a method for producing an amino acid derivative including contacting a microorganism and/or an enzyme with a hydroxyimino acid represented by the following general formula (I): wherein R1 represents an optionally substituted predetermined hydrocarbon group; R2 represents a C1 to C3 alkyl group or a hydrogen atom; and n is 0 or 1, to produce an amino acid derivative represented by the following general formula (III): wherein R1 and n have the same meanings as those of R1 and n in the general formula (I), wherein the microorganism and/or the enzyme is capable of catalyzing the reaction.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: October 25, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masakazu Sugiyama, Kunihiko Watanabe, Tadashi Takemoto, Kenichi Mori
  • Patent number: 8014817
    Abstract: A wireless communication terminal able to change a resonance frequency of a sub antenna, able to reduce interference to a main antenna, and able to suppress deterioration performance in a dual terminal compatible with a plurality of transmission systems, wherein, in a wireless communication unit, at the time of a CDMA2000 1xEVDO mode, a first receiver circuit, a second receiver circuit, and a transmitter circuit are in an operative state, and, in the second receiver circuit, an input impedance is held at the 50 ohm input impedance of a LNA by an impedance control unit, while at the time of a CDMA2000 1x mode, the first receiver circuit and the transmitter circuit are in the operative state, the second receiver circuit is in an inoperative state, and, in the second receiver circuit, the input impedance is controlled so as to be shifted from the 50 ohm input impedance of the LNA by the impedance control unit, and an antenna switching control method for the same.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: September 6, 2011
    Assignee: Kyocera Corporation
    Inventors: Tadashige Suzuki, Kunihiko Watanabe
  • Patent number: 8013249
    Abstract: A shield conductor Wa comprises: a metallic pipe 20, a wire 10 to be inserted into the pipe 20, and a groove-like fitting member 22 provided in the pipe 20 as extending along the direction of axis of the wire 10, and at the same time, attached tightly to the circumference of the wire. With the inner surface of the groove-like fitting member 22 in the pipe 20 attached tightly to the circumference of the wire 10, the heat generated in the wire 10 is transmitted directly to the pipe 20, and then released to the air from the circumference of the pipe 20. This improves radiation performance of the shield conductor Wa.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: September 6, 2011
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kunihiko Watanabe, Hideo Miyaki, Katsutoshi Izawa
  • Patent number: 8013947
    Abstract: Conventionally, when a protective/insulation film is present above a film to be corrected, only a defect of the film to be corrected below such an upper-layer film is corrected without damaging the upper-layer film. A display region of a display device has an insulation film, a semiconductor film and a conductive film formed in a given pattern and stacked on a substrate. When at least one of a correction portion out of a correction portion which separates a short-circuit defect, a correction portion which connects an opening defect, a correction portion which removes a standard deviation defect, and a correction portion which separates a standard deviation defect of the pattern is corrected, at least one upper-layer film is present above a film to be corrected at the correction portion and the correction is applied to the film to be corrected while leaving the upper-layer film intact.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: September 6, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yoshiyuki Kiya, Kunihiko Watanabe, Toshikazu Horii, Takao Takano
  • Publication number: 20110189738
    Abstract: The present invention relates to a process for producing efficiently glutamic acid derivatives (including salts thereof) such as monatin by converting a substituted ?-keto acid of formula (1) into a glutamic acid derivative of formula (2) in the presence of an enzyme catalyzing conversion of the same.
    Type: Application
    Filed: March 10, 2011
    Publication date: August 4, 2011
    Applicant: Ajinomoto Co., Inc.
    Inventors: Masakazu SUGIYAMA, Kunihiko WATANABE, Nao FUNAKOSHI, Yusuke AMINO, Shigeru KAWAHARA, Tadashi TAKEMOTO