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).

  • CANCER CELL INHIBITORY DRUG AND CANCER STEM-CELL DETECTION PROBE
    Publication number: 20150274715
    Abstract: An object of the present invention is to provide a cancer cell inhibitory drug, particularly a cancer stem-cell inhibitory drug, or a cancer stem-cell detection probe. A cancer cell inhibitory drug containing at least a compound represented by general formula (1).
    Type: Application
    Filed: October 25, 2013
    Publication date: October 1, 2015
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taichi Shintou, Tsuyoshi Nomoto, Kohei Watanabe, Takeshi Miyazaki, Toshio Tanaka, Yasuhito Shimada, Yuhei Nishimura
  • Toner
    Patent number: 9146486
    Abstract: The toner includes toner base particles, each of which contains a binder resin, a wax and a coloring agent, and a coloring matter compound represented by the general formula (1) is contained as the coloring agent. 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, R4 are bonded to each other, so as to form a cyclic organic functional group, and R5 represents an alkyl group; ii) R3 to R5 are bonded to one another, so as to form a cyclic organic functional group R7, R8 represent an alkyl group or an acyl group, or R7, R8 are bonded to each other, so as to form a cyclic organic functional group.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: September 29, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Taichi Shintou, Akiko Kitao, Yuko Katsumoto, Takeshi Miyazaki
  • Magenta toner and method for producing the same
    Patent number: 9146485
    Abstract: An object of the present invention is to provide a magenta toner having high dispersibility of a colorant and good spectral characteristics. A magenta toner includes a magenta toner particle including at least a binder resin, a compound represented by the formula (1), and a colorant, wherein the colorant includes a pigment having a quinacridone skeleton: (wherein 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: September 29, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yutaka Tani, Masao Nakano, Takayuki Ujifusa, Taichi Shintou, Kaoru Takahashi, Satoshi Saito, Takayuki Toyoda, Takeshi Miyazaki, Masashi Hirose
  • LIQUID DISCHARGE HEAD, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTURING LIQUID DISCHARGE HEAD
    Publication number: 20150266295
    Abstract: A liquid discharge head includes a channel plate, a diaphragm member, a piezoelectric element, and a temperature detector. The channel plate includes an individual liquid chamber in communication with a nozzle to discharge a droplet. The diaphragm member forms part of a wall face of the individual liquid chamber. The piezoelectric element is disposed on the diaphragm member and includes a lower electrode, a piezoelectric substance, and an upper electrode. The temperature detector is disposed on the diaphragm member and includes an electrode layer formed on the diaphragm member and a piezoelectric substance layer formed on the electrode layer.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventor: Takeshi MIYAZAKI
  • Magenta toner
    Patent number: 9134639
    Abstract: An object of the present invention is to provide a magenta toner having high lightness and saturation and having spectral reflection properties having a wider color range. A magenta toner including magenta toner particles each including a binder resin and a colorant, wherein the colorant includes a compound represented by a formula (1): (wherein R1 and R2 represent an alkyl group or an alkoxyalkyl group, and at least one of R1 and R2 has not less than 7 carbon atoms).
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: September 15, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masao Nakano, Taichi Shintou, Yutaka Tani, Takayuki Ujifusa, Kaoru Takahashi, Satoshi Saito, Takeshi Miyazaki, Masashi Hirose
  • Living body holding method, living body test method, living body growing method, living body holding sheet, and living body processing device
    Patent number: 9127245
    Abstract: A method of arranging a large number of living bodies, such as cells, embryos, or organisms rapidly, individually, and one by one, a holding sheet for the method, and a device for processing the living bodies. The method of holding living bodies includes using a sheet in which multiple through-holes with a size capable of holding one of the target living bodies, but not capable of holding two or more of the living bodies, are provided, to thereby arrange and hold the living bodies one by one in the multiple through-holes in the sheet together with a liquid.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: September 8, 2015
    Assignees: Canon Kabushiki Kaisha, Mie University
    Inventors: Takeshi Miyazaki, Kohei Watanabe, Toshio Tanaka, Yasuhito Shimada, Norihiro Nishimura
  • Pigment dispersion, ink composition including pigment dispersion, and color filter yellow resist composition including pigment dispersion
    Patent number: 9102811
    Abstract: The present invention provides a pigment dispersion excellent in dispersibility. Furthermore, the present invention provides a color filter yellow resist composition and an ink composition, which include the pigment dispersion. A pigment dispersion containing at least a compound represented by General formula (1) and a yellow pigment represented by General formula (2) in a dispersion medium and a method for manufacturing the same are provided. Furthermore, a color filter yellow resist composition and an ink composition are provided, wherein images can be displayed with high spectral characteristics and high display contrast because the brightness is high and the hue of yellow is excellent.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: August 11, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Yutaka Tani, Masao Nakano, Takayuki Ujifusa, Kaoru Takahashi, Satoshi Saito, Takeshi Miyazaki, Masashi Hirose
  • Polyester, pigment composition, and toner
    Patent number: 9097999
    Abstract: Provided is a pigment dispersant for improving the dispersibility of an azo pigment for a water-insoluble solvent. More specifically, provided is a polyester, including at least one unit represented by one of the following formula (1) and the following formula (2): in the formula (1) and the formula (2): R1 represents an alkyl group having 1 to 6 carbon atoms or a phenyl group; R2 to R6 each represent a hydrogen atom, a COOR7 group, or a CONR8R9 group, provided that at least one of the R2 to R6 represents the COOR7 group or the CONR8R9 group; and the R7 to R9 each represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: August 4, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuaki Murai, Masashi Kawamura, Masatake Tanaka, Takayuki Toyoda, Yuki Hasegawa, Masashi Hirose, Takeshi Miyazaki
  • Light source apparatus and projection apparatus
    Patent number: 9094619
    Abstract: A light source unit includes a red light source, a first blue-light source, a fluorescent material, a second blue-light source and an optical system. The red light source emits light in a red wavelength range. The first blue-light source emits light in a first blue-wavelength range. The fluorescent material receives the light in the first blue-wavelength range and emits light in a green wavelength range. The second blue-light source emits light in a second blue-wavelength range whose wavelengths are longer than those in the first blue-wavelength range. An optical system guides the light emitted from the red light source, the light emitted from the second blue-light source, and the light emitted from the fluorescent material, along a unique optical path.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: July 28, 2015
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi Miyazaki
  • CANCER CELL INHIBITORY DRUG AND CANCER STEM-CELL DETECTION PROBE
    Publication number: 20150182518
    Abstract: An object of the present invention is to provide a cancer cell inhibitory drug, particularly a cancer stem-cell inhibitory drug, or a cancer stem-cell detection probe. The present invention provides a cancer cell inhibitory drug comprising at least one compound represented by general formula (1) as an active ingredient.
    Type: Application
    Filed: October 25, 2013
    Publication date: July 2, 2015
    Inventors: Taichi Shintou, Tsuyoshi Nomoto, Kohei Watanabe, Takeshi Miyazaki, Toshio Tanaka, Yasuhito Shimada, Yuhei Nishimura
  • Yellow toner and method for producing the yellow toner
    Patent number: 9069273
    Abstract: A yellow toner is provided which is much more improved in color development and chroma, and much more improved in light resistance. The yellow toner contains, at least, a binder resin, a wax, and a coloring agent. The coloring agent is a compound represented by the following general formula (1).
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: June 30, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shosei Mori, Takeshi Sekiguchi, Taichi Shintou, Takeshi Miyazaki
  • Toner
    Patent number: 9069274
    Abstract: The present invention provides a toner excellent in light resistance. The toner includes toner base particles, each of which contains a binder resin, a wax and a coloring agent, and a coloring matter compound represented by the general formula (1) is contained as the coloring agent. 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 18, 2014
    Date of Patent: June 30, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuko Katsumoto, Akiko Kitao, Taichi Shintou, Takeshi Miyazaki
  • PROBE FOR A BIOLOGICAL SPECIMEN AND LABELLING METHOD AND SCREENING METHOD USING THE PROBE
    Publication number: 20150157745
    Abstract: Provided is a novel probe for a biological specimen for labelling by itself and clearly visualizing one of a specific cell and a specific cell organ in a living body, the probe having excellent spectral characteristics and exhibiting excellent storage stability. The probe for a biological specimen contains, as an active agent, at least one kind of compound represented by a general formula (I).
    Type: Application
    Filed: February 17, 2015
    Publication date: June 11, 2015
    Inventors: Taichi Shintou, Takeshi Miyazaki, Masashi Hirose, Taketoshi Okubo, Kohei Watanabe, Tsuyoshi Nomoto, Toshio Tanaka, Yuhei Nishimura, Yasuhito Shimada, Norihiro Nishimura
  • COLORING COMPOUND AND INK, COLOR FILTER RESIST COMPOSITION, AND THERMAL TRANSFER RECORDING INK SHEET CONTAINING SAID COLORING COMPOUND
    Publication number: 20150159019
    Abstract: The present invention provides a coloring compound that exhibits an excellent chromogenicity and provides an ink, a color filter resist composition, and a thermal transfer recording ink sheet that contain this coloring compound. The coloring compound has the structure represented by general formula (1), and the ink, color filter resist composition, and thermal transfer recording ink sheet contain this coloring compound.
    Type: Application
    Filed: August 21, 2013
    Publication date: June 11, 2015
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akiko Kitao, Ryuji Higashi, Taichi Shintou, Takeshi Miyazaki
  • Coloring matter compound, ink, heat-sensitive transfer recording sheet, and resist composition for color filter
    Patent number: 9051469
    Abstract: The present invention relates to a coloring matter compound that has high saturation and is excellent in light resistance.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: June 9, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Sekiguchi, Shosei Mori, Taichi Shintou, Takeshi Miyazaki
  • YELLOW TONER
    Publication number: 20150140487
    Abstract: The present invention provides a yellow toner having excellent light resistance. The yellow toner includes toner particles, each of which contains a binder resin, a wax, and a colorant. The colorant is a compound represented by Formula (1).
    Type: Application
    Filed: June 19, 2013
    Publication date: May 21, 2015
    Inventors: Takeshi Sekiguchi, Shosei Mori, Taichi Shintou, Yuko Katsumoto, Takayuki Ujifusa, Takeshi Miyazaki
  • LABELING COMPOSITION FOR INTRAOCULAR TISSUE, LABELING METHOD OF INTRAOCULAR TISSUE, AND SCREENING METHOD
    Publication number: 20150139908
    Abstract: The invention provides a labeling composition for an intraocular tissue of a living individual, which specifically labels the intraocular tissue without need of an invasive operation such as exposure of an ocular tissue or injection of a staining agent into the ocular tissue or a nerve tissue linking to the ocular tissue, a method of noninvasively labeling an intraocular tissue of a living individual, and a screening method using the labeling composition for the intraocular tissues. The composition contains a compound capable of labeling at least a photoreceptor cell layer of a retina, wherein the compound is a staining compound having a particular structure as a partial structure thereof.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 21, 2015
    Inventors: Kohei Watanabe, Taichi Shintou, Tsuyoshi Nomoto, Takeshi Miyazaki, Toshio Tanaka, Yuhei Nishimura, Yasuhito Shimada, Norihiro Nishimura
  • PHTHALOCYANINE PIGMENT AND PIGMENT DISPERSION, INK AND COLOR FILTER RESIST COMPOSITION CONTAINING SAME
    Publication number: 20150125792
    Abstract: The present invention provides a phthalocyanine pigment having superior color development property, and a pigment dispersion, an ink and a color filter resist composition containing the phthalocyanine pigment, in which the phthalocyanine pigment having a structure represented by general formula (1), and the pigment dispersion, the ink and the color filter resist composition containing the phthalocyanine pigment.
    Type: Application
    Filed: August 21, 2013
    Publication date: May 7, 2015
    Inventors: Ryuji Higashi, Akiko Kitao, Taichi Shintou, Takeshi Miyazaki
  • 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