Patents by Inventor Kenji Doi

Kenji Doi 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).

  • Publication number: 20240117304
    Abstract: A cell population comprising Corin- and/or Lrtm1-positive cells was produced by the following steps (1) and (2), from which Corin positive and/or Lrtm1 positive cells are collected using a substance that binds to Corin and/or a substance that binds to Lrtm1, and dopaminergie neuron progenitor cells are produced by performing suspension culture of the Corin positive and/or Lrtm1 positive cells in a culture solution containing one or more nutritional factors: (1) a step of performing adhesion culture of pluripotent stem cells in a medium for maintaining undifferentiated state containing a Sonic hedgehog (SHH) signal stimulant, and an undifferentiated state-maintaining factor in the absence of feeder cells but in the presence of an extracellular matrix, and (2) a step of culturing the cell population obtained in the step (1) in a culture solution containing one or more differentiation-inducing factors.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 11, 2024
    Applicants: KYOTO UNIVERSITY, SUMITOMO PHARMA CO., LTD.
    Inventors: Jun TAKAHASHI, Daisuke DOI, Kenji YOSHIDA, Atsushi KUWAHARA, Masayo TAKAHASHI
  • Publication number: 20240111281
    Abstract: A deterioration prediction system for a semiconductor manufacturing equipment or a semiconductor inspection equipment, including: an input device receiving, as an input, time series data indicating a state of the equipment; a deterioration prediction device having an estimation unit discriminating fluctuation in the time series data into fluctuation caused by changing setting of the equipment and fluctuation caused by deterioration of the equipment and estimating a time point when the setting is changed, a division unit dividing the time series data into the plurality of periods bounded by the time points, a discrimination unit discriminating at least a trend component from the fluctuation in the time series data in the period, and a prediction unit predicting the deterioration of the equipment based on at least the trend component; and an output device outputting a result of the prediction.
    Type: Application
    Filed: October 2, 2023
    Publication date: April 4, 2024
    Inventors: Kenji TAMAKI, Wataru KANNO, Takashi DOI, Fumihiro SASAJIMA
  • Patent number: 11921065
    Abstract: An exclusion module (21) is configured to calculate a coating amount of each component whose measurement element is not contained in the base layers, for each of corresponding measurement lines, on an assumption that that component solely makes up the thin film and to adopt a maximum coating amount as an initial value of the coating amount of that component; and to calculate a coating amount of each component whose measurement element is contained in the base layers, for each of corresponding measurement lines, on the basis of initial values of coating amounts of individual components whose measurement elements are not contained in the base layers, if calculation results for all the corresponding measurement lines give errors, to exclude that component from analysis targets as an unquantifiable component, and in other cases, to adopt a maximum coating amount as an initial value of the coating amount of that component.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: March 5, 2024
    Assignee: Rigaku Corporation
    Inventors: Shinya Hara, Yasujiro Yamada, Kenji Kodama, Makoto Doi
  • Publication number: 20240068080
    Abstract: A hot-stamped product with improved delayed-fracture resistance is provided. The hot-stamped product 1 includes: a steel substrate 10; and an Al film 20 formed on the steel substrate 10, the Al film 20 including: an interface layer 21 located at the interface with the steel substrate 10 and with part of the ?Fe substituted by Al and Si; an intermediate layer 22 formed on the interface layer 21; and an oxide layer formed on the intermediate layer, the intermediate layer 22 including an Fe—Al—Si phase 22a with part of the ?Fe substituted by Al and Si, the Fe—Al—Si phase 22a including one or more elements selected from the group consisting of Zr, Ce, Y, Ta, Ni, Cu, Nb, Cr, Co, V and Ti, the oxide layer 23 including one or more elements selected from the group consisting of Be, Mg, Ca, Sr, Ba, Sc and Zn.
    Type: Application
    Filed: March 14, 2022
    Publication date: February 29, 2024
    Inventors: Takashi DOI, Kenji KOBAYASHI, Naomi INATOMI, Yuki SUZUKI, Soshi FUJITA, Masahiro FUDA
  • Publication number: 20220414738
    Abstract: An information processing device according to the present application includes an obtaining unit, a reception unit, and a provision unit. The obtaining unit obtains a base image, the base image being an image that includes a transaction target specified by a user. The reception unit receives editing performed by the user on an illustration image that includes an illustration-prepared transaction target obtained by preparing an illustration of a transaction target included in the base image. The provision unit provides an edited illustration image to a search server that conducts an image search, the edited illustration image being the illustration image that has been edited by the user.
    Type: Application
    Filed: March 9, 2022
    Publication date: December 29, 2022
    Inventors: Kenji DOI, Masajirou IWASAKI, Shuhei NISHIMURA
  • Patent number: 10953419
    Abstract: A gas atomization nozzle includes a through-hole formed along a center line; a nozzle portion configured of a Laval nozzle which is disposed around the center line and provided to be inclined at a predetermined angle toward the center line; and swirling motion imparting means for imparting a swirling flow around the center line to gas which is injected from the nozzle portion. The nozzle portion is formed in a ring shape which is continuous around the center line, and the swirling motion imparting means is configured as a fin provided in the nozzle portion to impart a swirling flow.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 23, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES AERO ENGINES, LTD.
    Inventors: Tadayuki Hanada, Kenji Suzuki, Satoru Yamazaki, Kenji Doi, Shuntaro Terauchi, Hisashi Kitagaki
  • Publication number: 20190270103
    Abstract: A gas atomization nozzle includes a through-hole formed along a center line; a nozzle portion configured of a Laval nozzle which is disposed around the center line and provided to be inclined at a predetermined angle toward the center line; and swirling motion imparting means for imparting a swirling flow around the center line to gas which is injected from the nozzle portion. The nozzle portion is formed in a ring shape which is continuous around the center line, and the swirling motion imparting means is configured as a fin provided in the nozzle portion to impart a swirling flow.
    Type: Application
    Filed: January 25, 2018
    Publication date: September 5, 2019
    Inventors: Tadayuki HANADA, Kenji SUZUKI, Satoru YAMAZAKI, Kenji DOI, Shuntaro TERAUCHI, Hisashi KITAGAKI
  • Patent number: 8404914
    Abstract: The invention provides an efficient process for producing alkylated aromatic compounds such as cumene in a compact reactor. The invention also provides a process for producing phenol which includes a step of producing cumene by the above process. The process for producing alkylated aromatic compounds of the invention includes feeding raw materials including an aromatic compound and an alcohol in a gas-liquid downward concurrent flow mode to a fixed-bed reactor packed with a solid acid catalyst thereby to produce an alkylated aromatic compound, wherein the raw materials are fed to the reactor in a stream of a gas, and the reaction gas flow rate defined by the equation below is not less than 0.05 at an entrance of a solid acid catalyst layer: ?g·ug·[?air·?water/(?g·?l)]1/2(kgm?2s?1).
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: March 26, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shinji Senoo, Kazuhiko Kato, Kenji Doi, Katsunari Higashi
  • Patent number: 8283504
    Abstract: The invention provides processes for producing 2-propanol with higher purity than heretofore possible while suppressing the by-production of impurities. A process of the invention produces 2-propanol by reacting acetone with hydrogen in the presence of a hydrogenation catalyst, wherein the process includes reacting a raw material mixture containing water and acetone, with hydrogen in the presence of a hydrogenation catalyst, and the raw material mixture contains water at 1.2 to 4.0 wt % based on 100 wt % of the total of the water and the acetone.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: October 9, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kunihiko Morizane, Tatsuo Shirahata, Katsunari Higashi, Shinji Senoo, Kenji Doi
  • Patent number: 8273932
    Abstract: The process for producing alkylated aromatic compounds includes feeding raw materials including an aromatic compound, a ketone and hydrogen in a gas-liquid downward concurrent flow mode to a fixed-bed reactor packed with a catalyst thereby to produce an alkylated aromatic compound, wherein the catalyst includes a solid acid component and a metal component, the catalyst is loaded in the fixed-bed reactor such that the catalyst forms a catalyst layer, and the reaction gas flow rate defined by Equation (1) below is not less than 0.05 at an entrance of a layer containing the solid acid: ?g·ug·[?air·?water/(?g·?l)]1/2 (kgm?2s?1).
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 25, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shinji Senoo, Kazuhiko Kato, Kenji Doi, Katsunari Higashi
  • Patent number: 8257445
    Abstract: By forming a bone-compatible implant wherein a groove or hole has been formed in the surface of a base material made of titanium metal or a titanium alloy at its joint with a bone tissue and the groove or hole has on the inner surface thereof an oxide film formed by heating in an oxygen-containing atmosphere, apatite is allowed to deposit on the inner surface of the groove or hole easily. Thus, an implant is provided which can be attached to a bone within a relatively short period of time even without resorting to bone cement.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: September 4, 2012
    Assignee: Nakashima Medical Co., Ltd.
    Inventors: Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka, Atsushi Sugino, Kenji Doi, Koichi Kuramoto
  • Patent number: 8114942
    Abstract: Provided is a process for producing a cycloolefin resin composition, comprising a step of hydrogenating a resin composition. The resin composition before hydrogenation, which is used in the above step, includes 0.01 to 20 parts by weight of an unsaturated hydrocarbon compound having a boiling point of 50° C. or higher, for example, a monomer employed in polymerization, per 100 parts by weight of the resin composition.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 14, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasuhiro Takano, Masato Kawamura, Kenji Doi, Noritsuna Saito, Masaaki Ogizawa, Atsushi Shibuya, Toshiyuki Hirose
  • Publication number: 20110218367
    Abstract: The invention provides processes for producing 2-propanol with higher purity than heretofore possible while suppressing the by-production of impurities. A process of the invention produces 2-propanol by reacting acetone with hydrogen in the presence of a hydrogenation catalyst, wherein the process includes reacting a raw material mixture containing water and acetone, with hydrogen in the presence of a hydrogenation catalyst, and the raw material mixture contains water at 1.2 to 4.0 wt % based on 100 wt % of the total of the water and the acetone.
    Type: Application
    Filed: February 17, 2009
    Publication date: September 8, 2011
    Applicant: MITSUI CHEMICALS, INC
    Inventors: Kunihiko Morizane, Tatsuo Shirahata, Katsunari Higashi, Shinji Senoo, Kenji Doi
  • Publication number: 20110122650
    Abstract: A backlight unit arranged at the rear side of a liquid crystal panel for illuminating the liquid crystal panel. The backlight unit includes a light source for emitting light and a light guide plate. The light guide plate includes a light incident surface on which the light emitted from the light source is incident, a main reflection surface for internally reflecting the light incident on the light incident surface and a light launching surface from which the light reflected by the main reflection surface is launched toward the liquid crystal panel. The backlight unit further includes a frame for supporting the light guide plate and a substrate arranged at the opposite side of the frame from the liquid crystal panel and mounted with electronic parts. The light source is mounted to the substrate.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 26, 2011
    Applicant: Panasonic Electric Works SUNX Co., Ltd.
    Inventors: Sachi Osumi, Eiiti Uematu, Kenji Doi, Hiroki Katsuya
  • Publication number: 20110092745
    Abstract: The invention provides an efficient process for producing alkylated aromatic compounds by directly reacting an aromatic compound with a ketone and hydrogen in a compact reactor. The invention further provides a process for producing phenol which includes a step of producing cumene by the above alkylation process. The process for producing alkylated aromatic compounds includes feeding raw materials including an aromatic compound, a ketone and hydrogen in a gas-liquid downward concurrent flow mode to a fixed-bed reactor packed with a catalyst thereby to produce an alkylated aromatic compound, wherein the catalyst includes a solid acid component and a metal component, the catalyst is loaded in the fixed-bed reactor such that the catalyst forms a catalyst layer, and the reaction gas flow rate defined by Equation (1) below is not less than 0.
    Type: Application
    Filed: June 3, 2009
    Publication date: April 21, 2011
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinji Senoo, Kazuhiko Kato, Kenji Doi, Katsunari Higashi
  • Publication number: 20110087053
    Abstract: The invention provides an efficient process for producing alkylated aromatic compounds such as cumene in a compact reactor. The invention also provides a process for producing phenol which includes a step of producing cumene by the above process. The process for producing alkylated aromatic compounds of the invention includes feeding raw materials including an aromatic compound and an alcohol in a gas-liquid downward concurrent flow mode to a fixed-bed reactor packed with a solid acid catalyst thereby to produce an alkylated aromatic compound, wherein the raw materials are fed to the reactor in a stream of a gas, and the reaction gas flow rate defined by the equation below is not less than 0.05 at an entrance of a solid acid catalyst layer: ?g·ug·[?air·?water/(?g·?l)]1/2(kgm?2s?1).
    Type: Application
    Filed: June 3, 2009
    Publication date: April 14, 2011
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinji Senoo, Kazuhiko Kato, Kenji Doi, Katsunari Higashi
  • Patent number: 7785765
    Abstract: The present invention relates to a photosensitive resin composition comprising at least a thermoplastic elastomer (a), a photopolymerizable unsaturated monomer (b), and a photopolymerization initiator (c), characterized in that the thermoplastic elastomer (a) comprises at least vinyl aromatic hydrocarbon units, butadiene units, and alkylene units and contains alkylene units not less than 5 wt % and not more than 80 wt % with respect to the total amount of butadiene units and alkylene units. The present invention provides a photosensitive resin composition that simultaneously achieves excellent fine line reproducibility, ester solvent resistance, and prevention of cracks occurring on plate surface.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 31, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masahiro Fujiwara, Kenji Doi, Yoshifumi Araki, Kazuyoshi Yamazawa
  • Publication number: 20090176940
    Abstract: Provided is a process for producing a cycloolefin resin composition, comprising a step of hydrogenating a resin composition. The resin composition before hydrogenation, which is used in the above step, includes 0.01 to 20 parts by weight of an unsaturated hydrocarbon compound having a boiling point of 50° C. or higher, for example, a monomer employed in polymerization, per 100 parts by weight of the resin composition.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 9, 2009
    Applicant: Mitsui Chemicals Inc
    Inventors: Yasuhiro Takano, Masato Kawamura, Kenji Doi, Noritsuna Saito, Masaaki Ogisawa, Atsushi Shibuya, Toshiyuki Hirose
  • Patent number: 7543755
    Abstract: An electronic security system is provided with an electronic key and an electronic locking apparatus. The electronic key includes an identification data registry for storing one or more identification data for locking and unlocking. The electronic locking apparatus includes a key data registry for storing a key data having a predetermined relationship with an identification data of an electronic key corresponding to the electronic locking apparatus. The system includes with a reader/writer for reading and writing the identification data in and from the identification data registry. This system ensures an improved convenience by making a single key compatible with a plurality of objects.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: June 9, 2009
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Kenji Doi, Takashi Nishiyama, Ryouji Nakajima, Masaru Hashimoto, Kenshi Suzuki, Yoshiko Tsuji, Tokuhisa Nishimura
  • Publication number: 20090130632
    Abstract: By forming a bone-compatible implant wherein a groove or hole has been formed in the surface of a base material made of titanium metal or a titanium alloy at its joint with a bone tissue and the groove or hole has on the inner surface thereof an oxide film formed by heating in an oxygen-containing atmosphere, apatite is allowed to deposit on the inner surface of the groove or hole easily. Thus, an implant is provided which can be attached to a bone within a relatively short period of time even without resorting to bone cement.
    Type: Application
    Filed: December 7, 2006
    Publication date: May 21, 2009
    Applicant: Nakashima Propeller Co., Ltd.
    Inventors: Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka, Atsushi Sugino, Kenji Doi, Koichi Kuramoto