Patents by Inventor Motokazu Kobayashi

Motokazu Kobayashi 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: 11440318
    Abstract: A sodium niobate-barium titanate-based coating liquid composition including: (a) a sol-gel raw material containing (i) a niobium component, such as a niobium alkoxide, (ii) a sodium component, such as a sodium alkoxide, (iii) a titanium component, such as a titanium alkoxide, and (iv) a barium component, such as a barium alkoxide; and (b) a compound including at least one kind selected from the group consisting of a ?-ketoester compound and a ?-diketone compound represented by the following formula (1): where R1 represents an alkyl group having 1 or more to 6 or less carbon atoms.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: September 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Kotani, Motokazu Kobayashi, Yoshihiro Ohashi, Minako Nakasu
  • Publication number: 20220227984
    Abstract: To provide a method for producing a particle that can suppress non-specific adsorption without using BSA. A method for producing a particle, including: a first step of mixing a radically polymerizable monomer, an organic silane compound having a silicon atom to which an alkoxy group is bonded and having radical polymerizability, a radical polymerization initiator, a water-soluble polymer, and an aqueous medium to prepare an emulsion; and a second step of adding a specific reactive compound after the first step.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Inventors: Kengo Kanazaki, Fumio Yamauchi, Motokazu Kobayashi, Norishige Kakegawa, Ryo Natori, Tetsushi Yamamoto
  • Patent number: 11387401
    Abstract: An oriented piezoelectric film comprises perovskite type crystals expressed by formula (1) shown below: (1?x)NaNbO3-xBaTiO3 (0.01?x?0.40)??(1) and (111) oriented in pseudocubic crystal notation.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 12, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiro Ohashi, Yoshinori Kotani, Motokazu Kobayashi
  • Patent number: 11276813
    Abstract: Use of a barium titanate based coating liquid composition comprising: (a) a sol-gel source material containing (i) at least a barium component selected from a group consisting of barium alkoxides, hydrolyzates of barium alkoxides and condensates of hydrolyzates of barium alkoxides and (ii) at least a titanium component selected from a group consisting of titanium alkoxides, hydrolyzates of titanium alkoxides and condensates of hydrolyzates of titanium alkoxides; and (b) a ?-keto ester compound expressed by general formula (1) shown below: where R1 and R2 independently represent respective alkyl groups having not less than 1 and not more than 6 carbon atoms.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 15, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshinori Kotani, Yoshihiro Ohashi, Motokazu Kobayashi
  • Publication number: 20220034875
    Abstract: Provided is a magnetic particle excellent in detection speed when a substance to be measured, such as an antigen or an antibody, is detected from a specimen. The particle includes a magnetic particle containing a magnetic material, wherein the magnetic particle has a resin on a surface, wherein the particle has a volume average particle diameter of 0.4 ?m or more and 1.5 ?m or less, wherein the particle has a density of 5.1 g/cm3 or more and 10.0 g/cm3 or less, and wherein the resin has a functional group capable of binding a ligand.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 3, 2022
    Inventors: Ryo Natori, Motokazu Kobayashi, Norishige Kakegawa, Fumio Yamauchi, Kengo Kanazaki, Daisuke Sasaguri
  • Patent number: 10865311
    Abstract: Provided is a coating liquid for forming a piezoelectric thin film containing lead zirconate titanate, the coating liquid including a complex precursor containing at least three kinds of metal elements of Pb, Ti, and Zr, the coating liquid being free from an exothermic peak at a temperature of 450° C. or more, or having a heat generation amount at a temperature of from 400° C. to 450° C., which is larger than a heat generation amount at a temperature of from 450° C. to 500° C., in differential thermal analysis of the coating liquid.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: December 15, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Motokazu Kobayashi, Minako Nakasu, Naoyuki Koketsu, Chiemi Shimizu, Fumio Uchida
  • Patent number: 10850531
    Abstract: A photocurable ink contains a polymerizable compound and a photopolymerization initiator, and this ink contains a low boiling point solvent having a boiling point of 40° C. to 120° C. at one atmospheric pressure and at least one particle having a surface on which an unsaturated hydrocarbon group is provided.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 1, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Kotani, Motokazu Kobayashi, Takeshi Honma, Kaori Kawa, Shiori Yonezawa
  • Patent number: 10790436
    Abstract: Provided is use of an oriented piezoelectric film including of a perovskite-type crystal represented by the following general formula (1): Ba1-xCaxTi1-yZryO3 (0?x?0.2, 0?y?0.2) (1). The oriented piezoelectric film is formed on an oriented underlayer oriented in a (111) plane and contains first crystals oriented in the (111) plane with respect to a film surface and randomly oriented second crystal grains. The first crystal grains have an average grain diameter of from 300 nm to 600 nm and the second crystal grains have an average grain diameter of from 50 nm to 200 nm.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: September 29, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiro Ohashi, Yoshinori Kotani, Motokazu Kobayashi, Chiemi Shimizu, Fumio Uchida
  • Patent number: 10770645
    Abstract: An oriented piezoelectric film, wherein a crystal forming the oriented piezoelectric film, is a perovskite type crystal of the general formula of Ba1-xCaxTi1-yZryO3 (0?x?0.2, and 0?y?0.2), and the oriented piezoelectric film has (111) orientation according to a pseudocubic crystal notation.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: September 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiro Ohashi, Yoshinori Kotani, Motokazu Kobayashi
  • Patent number: 10647863
    Abstract: A film forming method includes forming a film on a substrate, in which the film includes first regions, second regions, and third regions, the first regions, the second regions, and the third regions being defined by a refractive index and a region size and being present in a mixed manner in a cross section parallel to a thickness direction, the first regions and the second regions have a refractive index at least 0.4 higher than the third regions, the second regions are formed of high-refractive-index particles having an average particle size of 10 nm or more and 100 nm or less, the first regions are formed of the high-refractive-index particles that have been aggregated, the first regions having an equivalent circular diameter of 250 nm or more, and the third regions have an equivalent circular diameter of more than 100 nm.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: May 12, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Kotani, Kenichi Iida, Satoshi Yamabi, Motokazu Kobayashi, Shinichirou Yoshikawa, Toshihiko Sugimoto, Takeshi Honma
  • Patent number: 10618285
    Abstract: Disclosed is a method of manufacturing a piezoelectric substrate, the method including: forming an intermediate layer of Ti and a lower electrode of Pt oriented in a (111) axis direction on a substrate without heating the substrate; applying a coating liquid for forming an orientation control layer made of lead titanate onto the lower electrode; drying the coating liquid at a predetermined temperature to form an orientation control layer precursor made of lead titanate; applying a coating liquid for forming a piezoelectric thin film made of lead zirconate titanate; drying the coating liquid at a predetermined temperature to form a piezoelectric precursor made of a lead zirconate titanate precursor; and collectively firing the orientation control layer precursor and the piezoelectric precursor to crystallize both the precursors, to thereby form a piezoelectric thin film made of lead zirconate titanate preferentially oriented in a (110) plane.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: April 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroto Numazawa, Minako Nakasu, Motokazu Kobayashi, Yoshihiro Ohashi
  • Publication number: 20200111946
    Abstract: An oriented piezoelectric film comprises perovskite type crystals expressed by formula (1) shown below: (1?x)NaNbO3-xBaTiO3 (0.01?x?0.40)??(1) and (111) oriented in pseudocubic crystal notation.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 9, 2020
    Inventors: Yoshihiro Ohashi, Yoshinori Kotani, Motokazu Kobayashi
  • Publication number: 20200108607
    Abstract: A sodium niobate-barium titanate-based coating liquid composition including: (a) a sol-gel raw material containing (i) a niobium component, such as a niobium alkoxide, (ii) a sodium component, such as a sodium alkoxide, (iii) a titanium component, such as a titanium alkoxide, and (iv) a barium component, such as a barium alkoxide; and (b) a compound including at least one kind selected from the group consisting of a ?-ketoester compound and a ?-diketone compound represented by the following formula (1): where R1 represents an alkyl group having 1 or more to 6 or less carbon atoms.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 9, 2020
    Inventors: Yoshinori Kotani, Motokazu Kobayashi, Yoshihiro Ohashi, Minako Nakasu
  • Patent number: 10570298
    Abstract: A photocurable ink containing a first liquid containing a polymerizable compound and a photopolymerization initiator, and a second liquid that is incompatible with the first liquid, in which droplets formed by the second liquid are dispersed in the first liquid, wherein the photocurable ink contains first particles and second particles having higher hydrophilicity than that of the first particles, wherein the first particles are adsorbed on an interface between the first liquid and the second liquid, and the second particles are present in the second liquid.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Honma, Motokazu Kobayashi, Yoshinori Kotani, Shiori Yonezawa, Kaori Kawa
  • Patent number: 10532567
    Abstract: A piezoelectric actuator has a ground substrate layer, an intermediate layer containing at least one of Ti and TiO2 on the ground substrate layer, an electrode layer containing Pt on the intermediate layer, and a piezoelectric layer containing lead zirconate titanate on the electrode layer, in which the lead zirconate titanate contained in the piezoelectric layer is preferentially oriented in the (100), (001), or (110) direction, the Pt contained in the electrode layer is preferentially oriented in the (111) direction, and the half width of the rocking curve in the (111) plane of the Pt contained in the electrode layer in X-ray diffraction is 1° or more.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: January 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minako Nakasu, Motokazu Kobayashi, Hiroto Numazawa, Toshio Tomiyoshi, Youichi Fukaya
  • Publication number: 20190393407
    Abstract: Provided is use of an oriented piezoelectric film including of a perovskite-type crystal represented by the following general formula (1): Ba1-xCaxTi1-yZryO3 (0?x?0.2, 0?y?0.2) (1). The oriented piezoelectric film is formed on an oriented underlayer oriented in a (111) plane and contains first crystals oriented in the (111) plane with respect to a film surface and randomly oriented second crystal grains. The first crystal grains have an average grain diameter of from 300 nm to 600 nm and the second crystal grains have an average grain diameter of from 50 nm to 200 nm.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 26, 2019
    Inventors: Yoshihiro Ohashi, Yoshinori Kotani, Motokazu Kobayashi, Chiemi Shimizu, Fumio Uchida
  • Publication number: 20190393408
    Abstract: An oriented piezoelectric film, wherein a crystal forming the oriented piezoelectric film, is a perovskite type crystal of the general formula of Ba1-xCaxTi1-yZryO3 (0?x?0.2, and 0?y?0.2), and the oriented piezoelectric film has (111) orientation according to a pseudocubic crystal notation.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 26, 2019
    Inventors: Yoshihiro Ohashi, Yoshinori Kotani, Motokazu Kobayashi
  • Publication number: 20190393404
    Abstract: Use of a barium titanate based coating liquid composition comprising: (a) a sol-gel source material containing (i) at least a barium component selected from a group consisting of barium alkoxides, hydrolyzates of barium alkoxides and condensates of hydrolyzates of barium alkoxides and (ii) at least a titanium component selected from a group consisting of titanium alkoxides, hydrolyzates of titanium alkoxides and condensates of hydrolyzates of titanium alkoxides; and (b) a ?-keto ester compound expressed by general formula (1) shown below: where R1 and R2 independently represent respective alkyl groups having not less than 1 and not more than 6 carbon atoms.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 26, 2019
    Inventors: Yoshinori Kotani, Yoshihiro Ohashi, Motokazu Kobayashi
  • Patent number: 10351719
    Abstract: A photo-curable ink contains an oil-based liquid containing a polymerizable compound and a photopolymerization initiator, and an aqueous liquid containing water. When the photo-curable ink is stirred at a rotational speed of 15000 rpm or more for 3 minutes and then allowed to stand at 25° C. for one hour or more, droplets formed with the aqueous liquid are dispersed in the oil-based liquid without layer separation between the oil-based liquid and the aqueous liquid.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Honma, Motokazu Kobayashi, Yoshinori Kotani, Kenichi Iida, Shiori Yonezawa, Kazumi Iwashita, Kaori Kawa
  • Publication number: 20190031902
    Abstract: A photocurable ink contains a polymerizable compound and a photopolymerization initiator, and this ink contains a low boiling point solvent having a boiling point of 40° C. to 120° C. at one atmospheric pressure and at least one particle having a surface on which an unsaturated hydrocarbon group is provided.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Inventors: Yoshinori Kotani, Motokazu Kobayashi, Takeshi Honma, Kaori Kawa, Shiori Yonezawa