Patents by Inventor Masahiro Ota

Masahiro Ota 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: 20130281428
    Abstract: Novel compounds or salts thereof, or crystals thereof, which inhibit Axl and are useful for treating diseases caused by Axl hyperfunction, diseases associated with Axl hyperfunction and/or diseases accompanied by Axl hyperfunction are provided. Pyridone derivatives represented by the formula (1) having various substituents or salts thereof, or crystals thereof (where R1, R2, R3, R5, R6, A, W, X and n in the formula (1) are as defined in the specification, respectively) are provided.
    Type: Application
    Filed: January 30, 2013
    Publication date: October 24, 2013
    Inventors: Hitoshi Ohki, Masahiro Ota, Kosuke Takeuchi, Hideaki Watanabe, Akitake Yamaguchi, Yoshihiro Shibata, Yuichi Tominaga, Takeshi Jimbo, Keijiro Kobayashi, Katsuhiro Kobayashi, Daisuke Fukatsu
  • Patent number: 8445504
    Abstract: A pyrazolopyrimidine compound represented by formula (1) that inhibits the function of HSP90 as a chaperone protein and that has antitumor activity, a medicament comprising a compound represented by formula (1), a pharmaceutical composition comprising a compound represented by formula (1), and a method for treating cancer using a compound represented by formula (1).
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: May 21, 2013
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
  • Patent number: 8367124
    Abstract: Provided is a lymphatic vessel stabilizer composed of Tie2 activator. The Tie2 activator is preferably at least one type selected from the group consisting of angiopoietin 1 (Ang-1), extract of Cinnamomum species plants, extract of Siberian Ginseng and syringaresinol.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: February 5, 2013
    Assignee: Shiseido Company, Ltd.
    Inventors: Kentaro Kajiya, Masahiro Ota
  • Publication number: 20120230908
    Abstract: A substrate for growing carbon nanotubes capable of elongating single-walled carbon nanotubes of an average diameter of less than 2 nm is provided. The substrate for growing carbon nanotubes 1 is equipped with a reaction prevention layer 3 formed on a base material 2, a catalyst material layer 4 formed on the reaction prevention layer 3, a dispersion layer 5 formed on the catalyst material layer 4, and a dispersion promotion layer 6 formed on the dispersion layer 5.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 13, 2012
    Applicants: WASEDA UNIVERSITY, HONDA MOTOR CO., LTD.
    Inventors: Toshiyuki OHASHI, Toshio TOKUNE, Masahiro OTA, Hidefumi NIKAWA, Hiroshi KAWARADA, Takumi OCHIAI
  • Publication number: 20120202833
    Abstract: A pyrazolopyrimidine compound represented by formula (1) that inhibits the function of HSP90 as a chaperone protein and that has antitumor activity, a medicament comprising a compound represented by formula (1), a pharmaceutical composition comprising a compound represented by formula (1), and a method for treating cancer using a compound represented by formula (1).
    Type: Application
    Filed: April 20, 2012
    Publication date: August 9, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
  • Patent number: 8236813
    Abstract: A pyrazolopyrimidine compound represented by formula (1) that inhibits the function of HSP90 as a chaperone protein and that has antitumor activity, a medicament comprising a compound represented by formula (1), a pharmaceutical composition comprising a compound represented by formula (1), and a method for treating cancer using a compound represented by formula (1).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 7, 2012
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
  • Patent number: 8037739
    Abstract: A method for analyzing a sample in a liquid is provided, which is suitable for easily and reliably preventing a liquid for analysis from being evaporated. When the sample in the liquid is observed by using a scanning probe microscope (SPM), a sealing liquid (17) immiscible with a liquid for analysis (16) is filled around the liquid for analysis (16), in which a sample (13) and a probe (15) are immersed, so as to form a sealing state, in which the liquid for analysis (16) is isolated from an external gas. The SPM enables the probe (15) disposed on a front end of a cantilever (14) to approach a surface of the sample (13) immersed in the liquid, scans the surface of the sample, and detects an interaction between the sample (13) and the probe (15), thereby generating an image.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: October 18, 2011
    Assignee: Shimadzu Corporation
    Inventors: Masahiro Ota, Noriaki Oyabu, Hiroaki Adachi, Masayuki Abe, Seizo Morita, Yusuke Mori, Takatomo Sasaki
  • Patent number: 7975316
    Abstract: A frequency shift ?f obtained by an FM-AFM can be expressed by a simple linear coupling of a ?fLR derived from a long-range interaction force and a ?fSR derived from a short-range interaction force. Given this factor, a ?f curve on an atomic defect and a ?f curve on a target atom on the sample surface are each measured for only a relatively short range scale (S1 and S2), and a difference ?f curve of those two curves is obtained (S3). Since the difference ?f curve is derived only from a short-range interaction force, a known conversion operation is applied to this curve obtain an F curve which illustrates the relationship between the force and the distance Z, and then the short-range interaction force on the target atom is obtained from the F curve (S4). Since the range scale in measuring the ?f curve can be narrowed, the measurement time can be shortened, and since the conversion from the ?f curve into F curve is required only once, the computational time can also be shortened.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: July 5, 2011
    Assignees: Osaka University, Shimadzu Corporation
    Inventors: Masahiro Ota, Noriaki Oyabu, Masayuki Abe, Oscar Custance, Yoshiaki Sugimoto, Seizo Morita
  • Publication number: 20110091584
    Abstract: Provided is a lymphatic vessel stabilizer composed of Tie2 activator. The Tie2 activator is preferably at least one type selected from the group consisting of angiopoietin 1 (Ang-1), extract of Cinnamomum species plants, extract of Siberian Ginseng and syringaresinol.
    Type: Application
    Filed: June 17, 2009
    Publication date: April 21, 2011
    Inventors: Kentaro Kajiya, Masahiro Ota
  • Publication number: 20110071170
    Abstract: A pyrazolopyrimidine compound represented by formula (1) that inhibits the function of HSP90 as a chaperone protein and that has antitumor activity, a medicament comprising a compound represented by formula (1), a pharmaceutical composition comprising a compound represented by formula (1), and a method for treating cancer using a compound represented by formula (1).
    Type: Application
    Filed: October 29, 2010
    Publication date: March 24, 2011
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
  • Publication number: 20110048115
    Abstract: A method for analyzing a sample in a liquid is provided, which is suitable for easily and reliably preventing a liquid for analysis from being evaporated. When the sample in the liquid is observed by using a scanning probe microscope (SPM), a sealing liquid (17) immiscible with a liquid for analysis (16) is filled around the liquid for analysis (16), in which a sample (13) and a probe (15) are immersed, so as to form a sealing state, in which the liquid for analysis (16) is isolated from an external gas. The SPM enables the probe (15) disposed on a front end of a cantilever (14) to approach a surface of the sample (13) immersed in the liquid, scans the surface of the sample, and detects an interaction between the sample (13) and the probe (15), thereby generating an image.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 3, 2011
    Applicant: SHIMADZU CORPORATION
    Inventors: MASAHIRO OTA, NORIAKI OYABU, HIROAKI ADACHI, MASAYUKI ABE, SEIZO MORITA, YUSUKE MORI, TAKATOMO SASAKI
  • Publication number: 20110014307
    Abstract: A vascular maturation, normalization or stabilization agent, or a Tie-2 activation agent, is provided comprising an extract derived from a plant belonging to the genus Cinnamomum.
    Type: Application
    Filed: March 31, 2009
    Publication date: January 20, 2011
    Inventors: Masahiro Ota, Koji Kobayashi, Ken Kusakari, Makoto Tsunenaga, Nobuyuki Takakura
  • Patent number: 7730770
    Abstract: A scanning probe microscope scans the surface of a sample while making a cantilever to which an exploratory needle is attached oscillate near its resonance point, and collects information on the surface of the sample based on the change of oscillation due to the interaction between the surface of the sample and the exploratory needle. The scanning probe microscope includes a plurality of oscillators attached to the cantilever for oscillating the cantilever, and an oscillator drive device connected to the oscillators for selectively applying an alternating voltage for excitation to the plurality of oscillators.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: June 8, 2010
    Assignee: Shimadzu Corporation
    Inventors: Takeshi Ito, Masahiro Ota
  • Patent number: 7703314
    Abstract: The present invention provides a technique for eliminating the effect of the thermal drift and other variances and to improve the observing or manipulating accuracy of a scanning probe microscope or atom manipulator by using the technique to correct the aforementioned change in the relative position of the probe and the sample due to heat or other factors during the observation or manipulation. To obtain an image of the sample surface at the atomic level or perform a certain manipulation on an atom on the sample surface, the present invention can be applied to a probe position control method for controlling the relative position of the probe and the sample while measuring an interaction between the objective atom on the sample surface and the tip of the probe. In the present method, the relative position of the probe and the sample are changed while the probe is oscillated relative to the sample in two directions parallel to the sample surface at frequencies of f1 and f2 (S1a).
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: April 27, 2010
    Assignees: Shimadzu Corporation, Osaka University
    Inventors: Masayuki Abe, Masahiro Ota, Yoshiaki Sugimoto, Kenichi Morita, Noriaki Oyabu, Seizo Morita, Oscar Custance
  • Publication number: 20100071099
    Abstract: A frequency shift ?f obtained by an FM-AFM can be expressed by a simple linear coupling of a ?fLR derived from a long-range interaction force and a ?fSR derived from a short-range interaction force. Given this factor, a ?f curve on an atomic defect and a ?f curve on a target atom on the sample surface are each measured for only a relatively short range scale (S1 and S2), and a difference ?f curve of those two curves is obtained (S3). Since the difference ?f curve is derived only from a short-range interaction force, a known conversion operation is applied to this curve obtain an F curve which illustrates the relationship between the force and the distance Z, and then the short-range interaction force on the target atom is obtained from the F curve (S4). Since the range scale in measuring the ?f curve can be narrowed, the measurement time can be shortened, and since the conversion from the ?f curve into F curve is required only once, the computational time can also be shortened.
    Type: Application
    Filed: January 7, 2008
    Publication date: March 18, 2010
    Inventors: Masahiro Ota, Noriaki Oyabu, Masayuki Abe, Oscar Custance, Yoshiaki Sugimoto, Seizo Morita
  • Publication number: 20080110248
    Abstract: A scanning probe microscope scans the surface of a sample while making a cantilever to which an exploratory needle is attached oscillate near its resonance point, and collects information on the surface of the sample based on the change of oscillation due to the interaction between the surface of the sample and the exploratory needle. The scanning probe microscope includes a plurality of oscillators attached to the cantilever for oscillating the cantilever, and an oscillator drive device connected to the oscillators for selectively applying an alternating voltage for excitation to the plurality of oscillators.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 15, 2008
    Applicant: SHIMADZU CORPORATION
    Inventors: Takeshi Ito, Masahiro Ota
  • Publication number: 20070272005
    Abstract: The present invention provides a technique for eliminating the effect of the thermal drift and other variances and to improve the observing or manipulating accuracy of a scanning probe microscope or atom manipulator by using the technique to correct the aforementioned change in the relative position of the probe and the sample due to heat or other factors during the observation or manipulation. To obtain an image of the sample surface at the atomic level or perform a certain manipulation on an atom on the sample surface, the present invention can be applied to a probe position control method for controlling the relative position of the probe and the sample while measuring an interaction between the objective atom on the sample surface and the tip of the probe. In the present method, the relative position of the probe and the sample are changed while the probe is oscillated relative to the sample in two directions parallel to the sample surface at frequencies of f1 and f2 (S1a).
    Type: Application
    Filed: May 24, 2007
    Publication date: November 29, 2007
    Applicants: SHIMADZU CORPORATION, OSAKA UNIVERSITY
    Inventors: Masayuki Abe, Masahiro Ota, Yoshiaki Sugimoto, Kenichi Morita, Noriaki Oyabu, Seizo Morita, Oscar Custance
  • Publication number: 20040250785
    Abstract: A vessel having a drain port having a shape improved for preventing formation of water film to the drain port can be provided without making large a diameter of the drain port. In a sectional plane including a center line 6 of the drain port 5, one 7 of wall section constituting the drain port is inclined with respect to another one 8 of wall sections thereof. Accordingly, water can smoothly drops down by its gravity without forming any water film due to surface tension. Furthermore, since the formation of the water film can be prevented without making large a diameter of the drain port, invasion of the water inside the vessel from the outside of the drain port 5 can be also prevented.
    Type: Application
    Filed: May 4, 2004
    Publication date: December 16, 2004
    Inventors: Toshinori Oba, Yasuhiro Suzuki, Masahiro Ota
  • Patent number: 6586496
    Abstract: A photo-curable resin composition for sealing material, which is superior in the photo-curing performance and in the prompt curing property and is better in the adhesive property, in the resistance to moisture permeation and in the heat resistance, the photo-curable resin composition comprising (A) a compound having oxetane ring, (B) a photoinitiator for cationic polymerization and (C) a silane coupling agent, wherein the composition has a viscosity in the range from 0.01 to 300 Pa.s at 25° C.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: July 1, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasushi Takamatsu, Kei Nagata, Masahiro Ota, Yasushi Mizuta, Yoshio Kikuta
  • Patent number: 6375918
    Abstract: A process for the continuous firing of powdered carbon which comprises firing powdered carbon continuously by feeding powdered carbon into a firing tube and applying microwaves to the top surface of a deposited layer of the powdered carbon so as to form a high-temperature fired layer within the deposited layer, and an apparatus therefor.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: April 23, 2002
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Masahiro Ota, Yasushi Mitsuyama, Masaharu Nishimura, Shinya Ishii, Naohiko Matsuda, Ichirou Yamashita