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).
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Publication number: 20130281428Abstract: 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: ApplicationFiled: January 30, 2013Publication date: October 24, 2013Inventors: Hitoshi Ohki, Masahiro Ota, Kosuke Takeuchi, Hideaki Watanabe, Akitake Yamaguchi, Yoshihiro Shibata, Yuichi Tominaga, Takeshi Jimbo, Keijiro Kobayashi, Katsuhiro Kobayashi, Daisuke Fukatsu
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Patent number: 8445504Abstract: 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: GrantFiled: April 20, 2012Date of Patent: May 21, 2013Assignee: Daiichi Sankyo Company, LimitedInventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
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Patent number: 8367124Abstract: 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: GrantFiled: June 17, 2009Date of Patent: February 5, 2013Assignee: Shiseido Company, Ltd.Inventors: Kentaro Kajiya, Masahiro Ota
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Publication number: 20120230908Abstract: 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: ApplicationFiled: March 7, 2012Publication date: September 13, 2012Applicants: WASEDA UNIVERSITY, HONDA MOTOR CO., LTD.Inventors: Toshiyuki OHASHI, Toshio TOKUNE, Masahiro OTA, Hidefumi NIKAWA, Hiroshi KAWARADA, Takumi OCHIAI
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Publication number: 20120202833Abstract: 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: ApplicationFiled: April 20, 2012Publication date: August 9, 2012Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
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Patent number: 8236813Abstract: 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: GrantFiled: October 29, 2010Date of Patent: August 7, 2012Assignee: Daiichi Sankyo Company, LimitedInventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
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Patent number: 8037739Abstract: 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: GrantFiled: August 22, 2008Date of Patent: October 18, 2011Assignee: Shimadzu CorporationInventors: Masahiro Ota, Noriaki Oyabu, Hiroaki Adachi, Masayuki Abe, Seizo Morita, Yusuke Mori, Takatomo Sasaki
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Patent number: 7975316Abstract: 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: GrantFiled: January 7, 2008Date of Patent: July 5, 2011Assignees: Osaka University, Shimadzu CorporationInventors: Masahiro Ota, Noriaki Oyabu, Masayuki Abe, Oscar Custance, Yoshiaki Sugimoto, Seizo Morita
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Publication number: 20110091584Abstract: 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: ApplicationFiled: June 17, 2009Publication date: April 21, 2011Inventors: Kentaro Kajiya, Masahiro Ota
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Publication number: 20110071170Abstract: 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: ApplicationFiled: October 29, 2010Publication date: March 24, 2011Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Hitoshi Ohki, Tooru Okayama, Masahiro Ikeda, Masahiro Ota, Yoshihiro Shibata, Toshiyuki Nakanishi, Yasusi Ueda, Nobuyuki Suzuki, Shinji Matuura
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Publication number: 20110048115Abstract: 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: ApplicationFiled: August 22, 2008Publication date: March 3, 2011Applicant: SHIMADZU CORPORATIONInventors: MASAHIRO OTA, NORIAKI OYABU, HIROAKI ADACHI, MASAYUKI ABE, SEIZO MORITA, YUSUKE MORI, TAKATOMO SASAKI
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Publication number: 20110014307Abstract: 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: ApplicationFiled: March 31, 2009Publication date: January 20, 2011Inventors: Masahiro Ota, Koji Kobayashi, Ken Kusakari, Makoto Tsunenaga, Nobuyuki Takakura
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Patent number: 7730770Abstract: 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: GrantFiled: October 25, 2007Date of Patent: June 8, 2010Assignee: Shimadzu CorporationInventors: Takeshi Ito, Masahiro Ota
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Patent number: 7703314Abstract: 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: GrantFiled: May 24, 2007Date of Patent: April 27, 2010Assignees: Shimadzu Corporation, Osaka UniversityInventors: Masayuki Abe, Masahiro Ota, Yoshiaki Sugimoto, Kenichi Morita, Noriaki Oyabu, Seizo Morita, Oscar Custance
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Publication number: 20100071099Abstract: 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: ApplicationFiled: January 7, 2008Publication date: March 18, 2010Inventors: Masahiro Ota, Noriaki Oyabu, Masayuki Abe, Oscar Custance, Yoshiaki Sugimoto, Seizo Morita
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Publication number: 20080110248Abstract: 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: ApplicationFiled: October 25, 2007Publication date: May 15, 2008Applicant: SHIMADZU CORPORATIONInventors: Takeshi Ito, Masahiro Ota
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Publication number: 20070272005Abstract: 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: ApplicationFiled: May 24, 2007Publication date: November 29, 2007Applicants: SHIMADZU CORPORATION, OSAKA UNIVERSITYInventors: Masayuki Abe, Masahiro Ota, Yoshiaki Sugimoto, Kenichi Morita, Noriaki Oyabu, Seizo Morita, Oscar Custance
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Publication number: 20040250785Abstract: 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: ApplicationFiled: May 4, 2004Publication date: December 16, 2004Inventors: Toshinori Oba, Yasuhiro Suzuki, Masahiro Ota
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Patent number: 6586496Abstract: 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: GrantFiled: March 23, 2001Date of Patent: July 1, 2003Assignee: Mitsui Chemicals, Inc.Inventors: Yasushi Takamatsu, Kei Nagata, Masahiro Ota, Yasushi Mizuta, Yoshio Kikuta
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Patent number: 6375918Abstract: 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: GrantFiled: November 22, 1999Date of Patent: April 23, 2002Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masahiro Ota, Yasushi Mitsuyama, Masaharu Nishimura, Shinya Ishii, Naohiko Matsuda, Ichirou Yamashita