Patents by Inventor Maiko Ito

Maiko Ito 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: 12165744
    Abstract: A method for making a recombinant gene includes searching a database using a nucleotide sequence of a coding region, a nucleotide sequence that encodes an amino acid sequence, or an amino acid sequence, of a gene, for one or more nucleotide sequences having homology; selecting one or more nucleotide sequences other than nucleotide sequences only derived from a genome from the selected nucleotide sequences; for ones of the selected one or more nucleotide sequences comprising an upstream or downstream nucleotide sequence, analyzing whether the upstream or downstream nucleotide sequence is a functional sequence to select one or more first functional sequences; for ones of the selected one or more nucleotide sequences comprising no upstream or downstream nucleotide sequence, analyzing whether a gene information has any description indicating a functional sequence to select one or more second functional sequences; scoring the selected functional sequences; and selecting one or more functional sequences.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 10, 2024
    Assignees: Hitachi, Ltd., National University Corporation Kobe University, Kyoto University
    Inventors: Maiko Tanabe, Shizu Takeda, Kiyoto Ito, Osamu Imaichi, Kenji Tsuge, Michihiro Araki
  • Publication number: 20240353619
    Abstract: Provided is an optical waveguide element having high polarization conversion efficiency even in an optical waveguide having a large core thickness. A core C22 of an optical waveguide 22 constituting a polarization separation and rotation unit 12 is formed in a tapered shape in which the width W1 continuously gradually increases from the input end toward the output end. A groove 25 having a V-shaped cross section is formed on the upper surface of the core C22. The groove 25 is formed on the upper surface of the core C22 to extend in the light propagation direction in the range from the input end to the output end of the core C22. In the optical waveguide 22, a waveguide mode in which an effective refractive index between an input end and an output end thereof is maximized is a TE0 mode, a second guided mode is a TM0 mode at the input end and a TE1 mode at the output end, and a transition is made from the TM0 mode to the TE1 mode from the input end toward the output end.
    Type: Application
    Filed: August 29, 2022
    Publication date: October 24, 2024
    Inventors: Yuto SUZUKI, Takuo TANEMURA, Abdulaziz Elsayed Mohamed ELFIQI, Taichiro FUKUI, Maiko ITO, Yoshiaki NAKANO
  • Publication number: 20240287844
    Abstract: An operation assistance system for assisting a user in operating an opening and closing portion includes: a sensor configured to detect an acceleration applied to the opening and closing portion; a drive unit configured to generate a driving force for displacing the opening and closing portion; a manual operation detection unit configured to detect, based on the acceleration detected by the sensor, a manual operation of displacing the opening and closing portion when the user applies a force to the opening and closing portion; a state detection unit configured to detect, based on an opening degree of the opening and closing portion, whether the opening and closing portion is in a small opening degree state in which the opening and closing portion has a first opening degree or less, or in an intermediate holding state in which the opening and closing portion is held at a second opening degree larger than the first opening degree; an obstacle detection unit configured to detect a distance from the opening and c
    Type: Application
    Filed: January 24, 2024
    Publication date: August 29, 2024
    Applicant: AISIN CORPORATION
    Inventors: Ryu MIYASHIRO, Maiko ITO
  • Publication number: 20240287845
    Abstract: An operation assistance system for assisting a user in operating an opening and closing portion includes: a sensor configured to detect an acceleration applied to the opening and closing portion; a drive unit configured to generate a driving force for displacing the opening and closing portion; a manual operation detection unit configured to detect, based on the acceleration detected by the sensor, a manual operation of opening or closing the opening and closing portion when the user applies a force to the opening and closing portion; and a drive control unit configured to control the drive unit to reduce an operation force of the user required for the manual operation when the manual operation is detected.
    Type: Application
    Filed: January 24, 2024
    Publication date: August 29, 2024
    Applicant: AISIN CORPORATION
    Inventors: Ryu GOTO, Ryu MIYASHIRO, Maiko ITO
  • Patent number: 8900479
    Abstract: Provided is a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or having a suitable balance regarding at least two of the characteristics. Also provided is an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having a polymerizable group as a first component, a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 2, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yoshimasa Furusato, Eriko Kurihara, Maiko Ito
  • Patent number: 8840807
    Abstract: To provide a polymerizable compound having a high solubility in a liquid crystal composition, and laterally having a ring structure; a liquid crystal composition containing the compound, and a liquid crystal display device using the composition; and the polymerizable compound includes a compound represented by formula (1): wherein, for example, R1 is hydrogen or alkyl having 1 to 20 carbons, R2 and R3 are each independently hydrogen or methyl; A1 and A2 are a single bond, 1,4-phenylene or 1,4-cyclohexylene; Z1 is a single bond or alkylene having 1 to 3 carbons, Z2 is —O—, —COO—, —OCO— or alkylene having 1 to 6 carbons, Z3 is a single bond or —O—, Z4 is a single bond or alkylene having 2 to 20 carbons; X1 is hydrogen, halogen or alkyl having 1 to 3 carbons; and a is 0 or 1.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: September 23, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventor: Maiko Ito
  • Patent number: 8539356
    Abstract: There is provided an image forming apparatus which can simply create a role that is an assembly of the authorities for using each function of the image forming apparatus.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: September 17, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Maiko Ito
  • Patent number: 8394468
    Abstract: Provided is a polymerizable compound with large solubility in a liquid crystal composition and high reactivity irradiated by ultraviolet in the longer wavelength range. Provided is a liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: March 12, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Maiko Ito, Keiji Kimura, Norikatsu Hattori, Eriko Saegusa
  • Patent number: 8389073
    Abstract: The invention provides a liquid crystal compound that has a large negative dielectric anisotropy (??) and also has at least one of characteristics such as the stability to heat, light or the like, a high clearing point, a suitable refractive index anisotropy (?n), a large negative dielectric anisotropy (??) and an excellent compatibility with other liquid crystal compounds. An excellent effect in which especially the value of the dielectric anisotropy (??) is increased negatively is achieved by use of the compound having two moieties of 1) a tetrahydropyran ring and and thus the effect is utilized.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 5, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Kenji Hirata, Tokifumi Masukawa, Junichi Yamashita, Maiko Ito
  • Publication number: 20130048912
    Abstract: To provide a polymerizable compound having a high solubility in a liquid crystal composition, and laterally having a ring structure; a liquid crystal composition containing the compound, and a liquid crystal display device using the composition; and the polymerizable compound includes a compound represented by formula (1): wherein, for example, R1 is hydrogen or alkyl having 1 to 20 carbons, R2 and R3 are each independently hydrogen or methyl; A1 and A2 are a single bond, 1,4-phenylene or 1,4-cyclohexylene; Z1 is a single bond or alkylene having 1 to 3 carbons, Z2 is —O—, —COO—, —OCO— or alkylene having 1 to 6 carbons, Z3 is a single bond or —O—, Z4 is a single bond or alkylene having 2 to 20 carbons; X1 is hydrogen, halogen or alkyl having 1 to 3 carbons; and a is 0 or 1.
    Type: Application
    Filed: May 9, 2011
    Publication date: February 28, 2013
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventor: Maiko Ito
  • Publication number: 20120236246
    Abstract: Provided is a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or having a suitable balance regarding at least two of the characteristics. Also provided is an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having a polymerizable group as a first component, a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.
    Type: Application
    Filed: December 22, 2010
    Publication date: September 20, 2012
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Yoshimasa Furusato, Eriko Kurihara, Maiko Ito
  • Publication number: 20120092608
    Abstract: Provided is a polymerizable compound with large solubility in a liquid crystal composition and high reactivity irradiated by ultraviolet in the longer wavelength range. Provided is a liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics.
    Type: Application
    Filed: May 7, 2010
    Publication date: April 19, 2012
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Maiko Ito, Keiji Kimura, Norikatsu Hattori, Eriko Saegusa
  • Publication number: 20110297881
    Abstract: The invention provides a liquid crystal compound that has a large negative dielectric anisotropy (??) and also has at least one of characteristics such as the stability to heat, light or the like, a high clearing point, a suitable refractive index anisotropy (?n), a large negative dielectric anisotropy (??) and an excellent compatibility with other liquid crystal compounds. An excellent effect in which especially the value of the dielectric anisotropy (??) is increased negatively is achieved by use of the compound having two moieties of 1) a tetrahydropyran ring and and thus the effect is utilized.
    Type: Application
    Filed: February 1, 2010
    Publication date: December 8, 2011
    Applicants: CHISSO PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Kenji Hirata, Tokifumi Masukawa, Junichi Yamashita, Maiko Ito
  • Publication number: 20110219326
    Abstract: There is provided an image forming apparatus which can simply create a role that is an assembly of the authorities for using each function of the image forming apparatus.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 8, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Maiko ITO
  • Patent number: 7985455
    Abstract: The compound of the present invention is represented by the formula (1). In the formula (1), R1 and R2 are hydrogen, fluorine, chlorine, methyl or ethyl; X1 and X2 are hydrogen, fluorine, methyl or trifluoromethyl; Z1 and Z2 are a single bond, —COO—, —OCO—, —CH?CH—COO—, —OCO—CH?CH—, —CH2CH2—COO—, —OCO—CH2CH2—, —CH2O—, —CONH—, —(CH2)4—, —CH2CH2— or —C?C—; Z3 and Z4 are a single bond or —O—; A1 and A2 are 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, pyridin-2,5-diyl, pyrimidin-2,5-diyl, naphthalen-2,6-diyl or tetrahydronaphtlane-2,6-diyl; and Y1 and Y2 are alkylene having from 2 to 20 carbon atoms.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: July 26, 2011
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Junichi Inagaki, Tomohiro Yano, Daisuke Ootsuki, Maiko Ito, Ryushi Shundo
  • Publication number: 20100264367
    Abstract: The compound of the present invention is represented by the formula (1). In the formula (1), R1 and R2 are hydrogen, fluorine, chlorine, methyl or ethyl; X1 and X2 are hydrogen, fluorine, methyl or trifluoromethyl; Z1 and Z2 are a single bond, —COO—, —OCO—, —CH?CH—COO—, —OCO—CH?CH—, —CH2CH2—COO—, —OCO—CH2CH2—, —CH2O—, —CONH—, —(CH2)4—, —CH2CH2— or —C?C—; Z3 and Z4 are a single bond or —O—; A1 and A2 are 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, pyridin-2,5-diyl, pyrimidin-2,5-diyl, naphthalen-2,6-diyl or tetrahydronaphtlane-2,6-diyl; and Y1 and Y2 are alkylene having from 2 to 20 carbon atoms.
    Type: Application
    Filed: May 7, 2010
    Publication date: October 21, 2010
    Inventors: Junichi Inagaki, Tomohiro Yano, Daisuke Ootsuki, Maiko Ito, Ryushi Shundo
  • Publication number: 20100193736
    Abstract: The compound of the present invention is represented by the formula (1). In the formula (1), R1 and R2 are hydrogen, fluorine, chlorine, methyl or ethyl; X1 and X2 are hydrogen, fluorine, methyl or trifluoromethyl; Z1 and Z2 are a single bond, —COO—, —OCO—, —CH?CH—COO—, —OCO—CH?CH—, —CH2CH2—COO—, —OCO—CH2CH2—, —CH2O—, —CONH—, —(CH2)4—, —CH2CH2— or —C?C—; Z3 and Z4 are a single bond or —O—; A1 and A2 are 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, pyridin-2,5-diyl, pyrimidin-2,5-diyl, naphthalen-2,6-diyl or tetrahydronaphtlane-2,6-diyl; and Y1 and Y2 are alkylene having from 2 to 20 carbon atoms.
    Type: Application
    Filed: April 16, 2008
    Publication date: August 5, 2010
    Inventors: Junichi Inagaki, Tomohiro Yano, Daisuke Ootsuki, Maiko Ito, Ryushi Shundo
  • Patent number: 7393569
    Abstract: A polymerizable liquid crystal composition containing compounds represented by the formula (1-1) and the formula (1-2), compounds represented by the formula (2-1) and the formula (2-2), and a compound represented by the formula (3-1): the polymerizable liquid crystal composition having homogeneous, homeotropic, or hybrid alignment, which can be coated on a support substrate, for example, of a transparent plastic film such as a triacetyl cellulose film or cycloolefin polymer film, or glass, and is aligned on a substrate as a polymer film while maintaining the alignment.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: July 1, 2008
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Maiko Ito, Masami Kimura, Ryushi Shundo
  • Patent number: 7378135
    Abstract: In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable liquid crystal composition is provided as a raw material therefor. The composition contains Compound (1) and at least one of Compound (2) and Compound (3), with a proportion of Compound (1) being from 50 to 99% by weight, a proportion of Compound (2) being from 0 to 50% by weight, and a proportion of Compound (3) being from 0 to 50% by weight: wherein R is alkyl; each of W1 and W2 is independently hydrogen, chlorine, fluorine or —CH3; each of W3 and W4 is independently hydrogen, chlorine, fluorine, —CH3 or —CF3; W5 is alkyl having, alkoxy, chlorine, fluorine, —CN or —OCF3; X is a single bond, —CH?CH— or —CH2CH2—; Z is a single bond, —COO—, —OCO— or —CH2CH2—; and q is an integer of from 1 to 20.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: May 27, 2008
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Kazuhiko Saigusa, Maiko Ito, Ryushi Shundo
  • Patent number: RE42221
    Abstract: A polymerizable liquid crystal composition containing compounds represented by the formula (1-1) and the formula (1-2), compounds represented by the formula (2-1) and the formula (2-2), and a compound represented by the formula (3-1): the polymerizable liquid crystal composition having homogeneous, homeotropic, or hybrid alignment, which can be coated on a support substrate, for example, of a transparent plastic film such as a triacetyl cellulose film or cycloolefin polymer film, or glass, and is aligned on a substrate as a polymer film while maintaining the alignment.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: March 15, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Maiko Ito, Masami Kimura, Ryushi Shundo