Patents by Inventor Takeshi Miyazaki

Takeshi Miyazaki 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).

  • Yellow toner
    Patent number: 9012115
    Abstract: To provide a yellow toner having a colorant in a good dispersed state, obtained through excellent granulation performance and having stable developing performance, the yellow toner contains a binder resin, a wax and a colorant, and is characterized by containing as the colorant a compound represented by the following general formula (1) and a compound represented by the following general formula (2).
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 21, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Ujifusa, Taichi Shintou, Yutaka Tani, Masao Nakano, Kaoru Takahashi, Satoshi Saito, Takeshi Miyazaki, Masashi Hirose
  • Rotary wheel, light source unit, projector and rotary wheel fabrication method
    Patent number: 8979276
    Abstract: There is provided a circular disc-shaped rotary wheel comprising a luminescent light emitting area in which a luminescent material is provided along a circumferential edge of the circular disc shape, an annular step portion which is formed at a different level from a reference plane which is a surface where the luminescent light emitting area is formed, and a balance correction material which is placed at the annular step portion, wherein the balance correction material is placed at the annular step portion so as to even a rotational balance when the rotary wheel is rotated.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: March 17, 2015
    Assignee: Casio Computer Co., Ltd.
    Inventor: Takeshi Miyazaki
  • Coloring matter compound, ink, resist composition for color filter, and heat-sensitive transfer recording sheet
    Patent number: 8974708
    Abstract: The coloring matter compound is represented by the following general formula (1): wherein R1, R2, R6 represent an alkyl group; R3 to R5 represent an alkyl group, or satisfy either of the following conditions i) and ii): i) R3 and R4 are bonded to each other, so as to form a cyclic organic functional group containing R3, R4 and a carbon atom bonded to R3 and R4, and R5 represents an alkyl group; ii) R3 to R5 are bonded to one another, so as to form a cyclic organic functional group containing R3, R4, R5 and a carbon atom bonded to R3 to R5; and R7, R8 represent an alkyl group or an acyl group, or R7 and R8 are bonded to each other, so as to form a cyclic organic functional group containing R7, R8 and a nitrogen atom bonded simultaneously to R7 and R8.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: March 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Yuko Katsumoto, Akiko Kitao, Takeshi Miyazaki
  • Light source unit including a light emitting plate on which a diffusive transmission area and a luminescent light emitting area are formed, and projector
    Patent number: 8957366
    Abstract: There is provided a light source unit comprising a first and second light sources, a luminescent light emitting device having a light emitting plate, a light source control device controlling the illumination of the light sources and driving of the light emitting plate, and a light guiding optical system guiding light from the light sources and luminescent light from the light emitting plate so that optical axes coincide to be directed in the same direction, wherein the light emitting plate includes a first area with a luminescent material layer on a reflection layer, a second area transmitting light from the light sources while diffusing it and a third area with a luminescent material layer on a dichroic layer, and wherein the light emitting plate includes a drive motor positioning repeatedly sequentially the first, second and third areas in an optical axis position of light from the light sources.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: February 17, 2015
    Assignee: Casio Computer Co., Ltd.
    Inventor: Takeshi Miyazaki
  • Water-insoluble coloring matter compound, ink using the water-insoluble coloring matter compound, thermal transfer recording sheet and resist composition for color filter
    Patent number: 8951340
    Abstract: An object of the present invention is to provide a water-insoluble coloring matter compound having high solubility for a solvent and high lightness and chroma and providing a chromaticity closer to the magenta chromaticity represented by the Adobe RGB color space. A water-insoluble coloring matter compound represented by the formula (1) is provided: wherein R1 and R2 represent an alkyl group, and R3 represents an alkyl group, an aryl group, or an alkoxy group. And the alkyl group, the aryl group and the alkoxy group regarding to R1 to R3 are capable of having a substituent.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Takayuki Ujifusa, Masao Nakano, Yutaka Tani, Satoshi Saito, Takeshi Miyazaki
  • YELLOW TONER AND PROCESS FOR PRODUCING THE YELLOW TONER
    Publication number: 20150037725
    Abstract: A yellow toner is provided which is superior in dispersibility of C. I. pigment yellow 185, has a high color development property, and is superior in light resistance. The yellow toner has toner particles containing at least a binder resin, a wax, and a colorant, wherein the yellow toner contains C.I.
    Type: Application
    Filed: March 6, 2013
    Publication date: February 5, 2015
    Inventors: Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • Coloring matter compound, ink, resist composition for color filter, and heat-sensitive transfer recording sheet
    Patent number: 8940087
    Abstract: The coloring matter compound is represented by the following general formula (1): wherein R1 and R2 each independently represent an alkyl group or an acyl group, or R1 and R2 may be bonded to each other so as to form a cyclic organic functional group containing, as a hetero atom, a nitrogen atom to which R1 and R2 are bonded; R3 and R4 each independently represent an alkyl group; R5 and R6 each independently represent an alkyl group or an alkoxy group; R7 represents a hydrogen atom, an alkyl group or an alkoxy group; and R8 represents an alkyl group.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: January 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Katsumoto, Taichi Shintou, Akiko Kitao, Takeshi Miyazaki
  • PIGMENT DISPERSION AND YELLOW RESIST COMPOSITION FOR COLOR FILTER AND INK COMPOSITION CONTAINING THE PIGMENT DISPERSION
    Publication number: 20150010865
    Abstract: An object of the present invention is to provide a pigment dispersion excellent in the dispersibility of C.I. Pigment yellow 185. The present invention provides a pigment dispersion wherein C.I.
    Type: Application
    Filed: February 27, 2013
    Publication date: January 8, 2015
    Inventors: Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • Toner and toner production method
    Patent number: 8927185
    Abstract: The present invention provides a toner having superior color development property and a method of producing a toner having favorable particle size distribution and color development property, in which the toner containing a binder resin and a colorant that contains a phthalocyanine pigment represented by general formula (1), and the method for producing the toner.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Higashi, Akiko Kitao, Taichi Shintou, Takeshi Miyazaki
  • Pigment dispersion, and resist composition for color filter and ink composition each using the pigment dispersion
    Patent number: 8926740
    Abstract: To provide a pigment dispersion excellent in dispersibility and spectral characteristics. The pigment dispersion at least includes: a dispersion medium; a compound represented by a general formula (1), the compound being dispersed in the dispersion medium; and a pigment having a quinacridone skeleton, the pigment being dispersed in the dispersion medium: in the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Takayuki Ujifusa, Masao Nakano, Yutaka Tani, Kaoru Takahashi, Satoshi Saito, Takayuki Toyoda, Takeshi Miyazaki, Masashi Hirose
  • WATER-INSOLUBLE COLORING COMPOUND, INK, THERMAL TRANSFER RECORDING SHEET, AND COLOR FILTER RESIST COMPOSITION
    Publication number: 20140370207
    Abstract: The present invention provides a water-insoluble coloring compound having excellent light resistance, an ink containing the coloring compound, a thermal transfer recording sheet including a coloring material layer formed on a base material from the ink, and a color filter resist composition containing the ink.
    Type: Application
    Filed: January 16, 2013
    Publication date: December 18, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takeshi Sekiguchi, Shosei Mori, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • Colored resin powder and toner using the colored resin powder
    Patent number: 8906587
    Abstract: Provided is a colored resin powder which can reproduce even high lightness and saturation and has spectral reflectance characteristic having a wide gamut. The colored resin powder includes a water-insoluble coloring matter compound represented by the following general formula (1) and a binder resin: in which in the general formula (1), R1 and R2 each independently represent an alkyl group, and R3 represents one of an alkyl group, an aryl group, and an alkoxy group.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masao Nakano, Yutaka Tani, Taichi Shintou, Takayuki Ujifusa, Satoshi Saito, Takeshi Miyazaki
  • OPTICAL WHEEL DEVICE AND PROJECTION SYSTEM
    Publication number: 20140354960
    Abstract: There is provided an optical wheel device including a motor, a wheel holding member which is fixed to a motor shaft of the motor and which has a recess portion on a surface which is normal to the motor shaft, an optical wheel which is fixed to a surface of the wheel holding member which is opposite to a surface facing the motor, and a collective lens which is disposed in the proximity to the optical wheel on a side of the optical wheel which is opposite to a side facing the motor, wherein a distal end face of a projecting portion on the wheel holding member which projects towards a side of the collective lens is positioned closer to a side of the motor than a plane of a surface of the collective lens which faces the motor.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi MIYAZAKI
  • WATER-INSOLUBLE COLORING COMPOUND, INK, THERMAL TRANSFER RECORDING SHEET, AND COLOR FILTER RESIST COMPOSITION
    Publication number: 20140349036
    Abstract: The present invention provides a water-insoluble coloring compound having a high solvent solubility, showing increased brightness and saturation, and being useful for increasing the green gamut and also provides an ink containing the water-insoluble coloring compound. The present invention provides a thermal transfer recording sheet including a coloring material layer formed on a base material from the ink and also provides a color filter resist composition showing an increased green gamut due to the ink.
    Type: Application
    Filed: January 16, 2013
    Publication date: November 27, 2014
    Inventors: Yuko Katsumoto, Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Takayuki Ujifusa, Takeshi Miyazaki
  • COMPOUND, INK, INK CARTRIDGE AND INK JET RECORDING METHOD
    Publication number: 20140285567
    Abstract: There are provided a new compound which has the following general formula (1) and which is useful as a coloring material, an ink containing the compound, an ink cartridge containing the ink and an ink jet recording method including ejecting the ink from a recording head of an ink jet system to record an image on a recording medium,
    Type: Application
    Filed: March 19, 2014
    Publication date: September 25, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masahiro Suenaga, Kaoru Takahashi, Yasuaki Murai, Takeshi Miyazaki, Yutaka Tani, Masashi Hirose, Ryosuke Nagao, Yoshio Kinoshita, Yoshihide Aikawa
  • Ejection liquid, ejection method, method for forming liquid droplets, liquid ejection cartridge and ejection apparatus
    Patent number: 8833363
    Abstract: An ejection liquid capable of being stably ejected based on a system using thermal energy even if the liquid contains at least one selected from the group consisting of proteins and peptides, and a method and an apparatus for ejecting the liquid containing at least one selected from the group consisting of proteins and peptides using this system are provided. The applicability of the liquid for use in an inkjet system using thermal energy is improved by adding at least one selected from the group consisting of amino acids and salts thereof and a surfactant to an aqueous solution containing at least one selected from the group consisting of proteins and peptides.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Masada, Masaru Sugita, Hideki Kaneko, Takeshi Miyazaki
  • Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion, and toner
    Patent number: 8815485
    Abstract: A compound that can improve azo pigment dispersibility in a non-water-soluble solvent. The compound is represented by formula (1): wherein R1 to R4 represent hydrogen or halogen; R5 to R9 represent hydrogen, COOR17 or CONR18R19, and at least one of R5 to R9 represents COOR17 or CONR18R19, where R17 to R19 represent hydrogen or an alkyl group having 1 to 3 carbons; R10 represents an alkyl group having 1 to 6 carbons or a phenyl group; R11 to R15 represent a hydrogen, L1R20 or L2R21R22, and at least one of R11 to R15 represents L1R20 or L2R21R22, where L1 represents a divalent linking group, L2 represents a trivalent linking group, and R20 to R22 represent an alkyl group having 8 or more carbons or an alkenyl group having 8 or more carbons; and R16 represents an alkyl group having 1 to 6 carbons or a phenyl group.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: August 26, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatake Tanaka, Masashi Kawamura, Yuki Hasegawa, Takayuki Toyoda, Yasuaki Murai, Masashi Hirose, Takeshi Miyazaki
  • Light source unit and projector
    Patent number: 8807758
    Abstract: A light source unit is provided which includes a first light source which shines excitation light of a predetermined wavelength band; an optical path switching device which switches in a time-sharing fashion the light shone from the first light source into first light which is shone in a first direction and second light which is shone in a second direction; a light emitting plate on which a luminescent material layer is formed which emits luminescent light of a wavelength band which is different from that of the excitation light when receiving the second light; and a light guiding optical system which guides the first light and the luminescent light to the same optical path.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 19, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Takeshi Miyazaki
  • LIQUID COMPOSITION, AND COLOR-FILTER RESIST COMPOSITION, THERMAL-TRANSFER RECORDING SHEET AND INK WHICH MAKE USE OF THE LIQUID COMPOSITION
    Publication number: 20140225048
    Abstract: It is aimed to provide a liquid composition having a high solubility in solvents, high brightness and chroma, and spectral reflection characteristics with a broad color range. It is a liquid composition characterized by having a medium and a compound represented by the following general formula (1). In the general formula (1), R1 and R2 each represent an alkyl group, and either one of these represents an alkyl group having 7 or more carbon atoms.
    Type: Application
    Filed: July 24, 2012
    Publication date: August 14, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Saito, Taichi Shintou, Takayuki Ujifusa, Yutaka Tani, Masao Nakano, Kaoru Takahashi, Takeshi Miyazaki, Masashi Hirose
  • Media player
    Patent number: D714254
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 30, 2014
    Assignee: Sony Corporation
    Inventors: Takeshi Miyazaki, Yosuke Shimizu, Yusuke Otani, Naoki Sugiyama, Asami Yamagishi