Patents by Inventor Tatsuya Niimi

Tatsuya Niimi 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: 20170369607
    Abstract: An active energy ray liquid composition is provided. A cured product of the active energy ray curable liquid composition is a solid at 25° C. and a liquid at 60° C., and the solid exhibits a compression stress of 2.0 kPa or more when compressed 1%.
    Type: Application
    Filed: June 22, 2017
    Publication date: December 28, 2017
    Inventors: Hiroshi IWATA, Yoshihiro NORIKANE, Tatsuya NIIMI, Takashi MATSUMURA, Hiroyuki NAITO
  • Publication number: 20170326645
    Abstract: A solid freeform fabrication material set includes a first solid freeform fabrication liquid material including a solvent, a resin A soluble in the solvent, and an inorganic particle; and a second solid freeform fabrication liquid material including a resin B soluble in water and a second colorant.
    Type: Application
    Filed: April 10, 2017
    Publication date: November 16, 2017
    Inventors: Takuya SAITO, Masaki Watanabe, Yoichi Sakurai, Tatsuya Niimi
  • Publication number: 20170270831
    Abstract: A solid freeform fabrication object includes a hydrogel including a polymer, water, and a coloring material inclusion substance.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 21, 2017
    Inventors: Yoshihiro NORIKANE, Tatsuya Niimi, Takashi Matsumura, Hiroshi Iwata, Hiroyuki Naito
  • Publication number: 20170258556
    Abstract: Provided is a medical device including a porous portion and a dense portion, wherein an arithmetic average roughness of a surface of the porous portion is 2.0 ?m or greater but 20 ?m or less, and wherein an arithmetic average roughness of a surface of the dense portion is less than 2.0 ?m.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 14, 2017
    Inventors: Masaki WATANABE, Yoichi SAKURAI, Takuya SAITO, Tatsuya NIIMI
  • Publication number: 20170113411
    Abstract: A solid freeform fabrication material set includes a material A for solid freeform fabrication and a material B for solid freedom fabrication. The material A includes a polymerization initiator A and at least one of an organic particle and an inorganic particle. The material B includes a polymerizable compound B.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 27, 2017
    Inventors: Masaki WATANABE, Tatsuya NIIMI, Teruki KUSAHARA, Yoichi SAKURAI, Kohichiroh TANAKA
  • Publication number: 20170107226
    Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as, for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 20, 2017
    Inventors: Takeshi HONDO, Keita NAKANISHI, Tatsuya NIIMI, Masaichi WARIZAYA, Ichiji NAMATAME, Katsuya HARADA
  • Patent number: 9562020
    Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: February 7, 2017
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
  • Publication number: 20170022348
    Abstract: A hydrogel object includes a polymer and water, wherein the rate of mass loss is not greater than 20 percent by mass when the hydrogel object is left undone for one week at 25 degrees C. and relative humidity of 50 percent.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 26, 2017
    Inventors: Hiroshi IWATA, Tatsuya NIIMI, Yoshihiro NORIKANE, Takashi MATSUMURA
  • Publication number: 20170008228
    Abstract: A method of manufacturing a three-dimensional object includes imparting a first liquid having a first composition including a solvent and a curable material and a second liquid having a second composition to form a liquid film, curing the liquid film, and repeating the imparting and the curing to obtain the three-dimensional object, wherein the imparting position and the imparting amount of each of the first liquid and the second liquid are controlled in such a manner that the liquid film includes multiple areas where at least one of post-curing compression stress and post-curing modulus of elasticity is different.
    Type: Application
    Filed: June 28, 2016
    Publication date: January 12, 2017
    Inventors: Hiroshi IWATA, Yoshihiro NORIKANE, Takashi MATSUMURA, Tatsuya NIIMI, Hiroyuki NAITO
  • Publication number: 20160039771
    Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.
    Type: Application
    Filed: October 16, 2015
    Publication date: February 11, 2016
    Inventors: Takeshi HONDO, Keita NAKANISHI, Tatsuya NIIMI, Masaichi WARIZAYA, Ichiji NAMATAME, Katsuya HARADA
  • Patent number: 9212147
    Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: December 15, 2015
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
  • Publication number: 20140336165
    Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as, for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.
    Type: Application
    Filed: November 14, 2012
    Publication date: November 13, 2014
    Inventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
  • Patent number: 8227156
    Abstract: To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor. where R1 and R2 independently represent any one of a hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group, and R3, R4, R5, R6, R7, R8, R9 and R10 independently represent any one of a hydrogen atom, halogen atom, cyano group, nitro group, amino group, hydroxyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: July 24, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Shimoyama, Eiji Kurimoto, Tatsuya Niimi, Shinichi Kawamura, Yoshiki Yanagawa
  • Patent number: 8206880
    Abstract: An electrophotographic photoreceptor, including an electroconductive substrate; and a photosensitive layer overlying the substrate, wherein the photosensitive layer comprises a complex azo pigment comprising an azo compound having the following formula (a): A(H)n??(a) wherein A represents a residue of an azo compound, bonded with n pieces of hydrogen atom through one or more heteroatom being N or O and forming a part of the residue A; H represents a hydrogen atom; and n represents an integer of from 1 to 9, and a pigment.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: June 26, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromi Tada, Masafumi Ohta, Tatsuya Niimi, Norio Nagayama, Yoshiki Yanagawa, Yuuji Tanaka
  • Publication number: 20120021346
    Abstract: An image bearing member having a substrate and a layer provided overlying the substrate, which has a cured material in which a compound comprising three or more methylol groups and a charge transport group is cross-linked.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 26, 2012
    Inventors: Norio Nagayama, Yuuji Tanaka, Hiromi Sakaguchi, Tetsuro Suzuki, Tatsuya Niimi
  • Publication number: 20110111335
    Abstract: To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 12, 2011
    Inventors: Keisuke SHIMOYAMA, Eiji Kurimoto, Takeshi Orito, Tatsuya Niimi, Shinichi Kawamura, Yoshiki Yanagawa, Michitaka Sasaki
  • Publication number: 20110071146
    Abstract: To provide a novel and excellent method for treating and/or preventing prostatic cancer, benign prostatic hyperplasia, acne, seborrhea, hirsutism, baldness, alopecia, precocious puberty, adrenal hypertrophy, polycystic ovary syndrome, breast cancer, lung cancer, endometriosis, leiomyoma and the like based on selective inhibitory activity against 17?HSD type 5. It was found that an N-sulfonylindole derivative, where the indole ring is substituted by a carboxy group, a carboxy-substituted lower alkyl group or a carboxy-substituted lower alkenyl group at its carbon atom, has potent selective inhibitory activity against 17?HSD type 5 and may become a therapeutic agent and/or preventive agent for benign prostatic hyperplasia, prostatic cancer and the like without accompanying adverse drug reactions due to a decrease in testosterone, and the present invention has thus been completed.
    Type: Application
    Filed: November 10, 2010
    Publication date: March 24, 2011
    Inventors: Tatsuya Niimi, Akio Kamikawa, Yasushi Amano, Tomohiko Yamaguchi, Kenichi Suzumura, Kentaro Enjo, Takashi Furutani, Akio Kakefuda, Yutaka Kondoh, Masaaki Hirano
  • Patent number: 7894750
    Abstract: An image forming apparatus is provided, including an electrostatic latent image bearer; a charger charging the electrostatic latent image bearer; an irradiator irradiating the electrostatic latent image bearer with imagewise light having an image resolution not less than 1,200 dpi to form an electrostatic latent image thereon; an image developer developing the electrostatic latent image with a toner to form a toner image on the electrostatic latent image bearer; a transferer transferring the toner image onto a recording medium; and a fixer fixing the toner image on the recording medium, wherein a time for a given point on the electrostatic latent image bearer to travel from a position right in front of the irradiator to a position right in front of the image developer is shorter than 50 msec and longer than a transit time of the electrostatic latent image bearer, and an image forming method using the image forming apparatus.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: February 22, 2011
    Assignee: Ricoh Company Limited
    Inventors: Yoshinori Inaba, Tatsuya Niimi
  • Patent number: 7871747
    Abstract: To provide an electrophotographic photoconductor that has a layer containing a compound represented by the following general formula (1), and an image forming apparatus using the electrophotographic photoconductor. where R1 and R2 independently represent any one of a hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group, and R3, R4, R5, R6, R7, R8, R9 and R10 independently represent any one of a hydrogen atom, halogen atom, cyano group, nitro group, amino group, hydroxyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group and substituted or unsubstituted aralkyl group.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: January 18, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Shimoyama, Eiji Kurimoto, Takeshi Orito, Tatsuya Niimi, Shinichi Kawamura, Yoshiki Yanagawa, Michitaka Sasaki
  • Patent number: 7855225
    Abstract: To provide a novel and excellent method for treating and/or preventing prostatic cancer, benign prostatic hyperplasia, acne, seborrhea, hirsutism, baldness, alopecia, precocious puberty, adrenal hypertrophy, polycystic ovary syndrome, breast cancer, lung cancer, endometriosis, leiomyoma and the like based on selective inhibitory activity against 17?HSD type 5. It was found that an N-sulfonylindole derivative, where the indole ring is substituted by a carboxy group, a carboxy-substituted lower alkyl group or a carboxy-substituted lower alkenyl group at its carbon atom, has potent selective inhibitory activity against 17?HSD type 5 and may become a therapeutic agent and/or preventive agent for benign prostatic hyperplasia, prostatic cancer and the like without accompanying adverse drug reactions due to a decrease in testosterone, and the present invention has thus been completed.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: December 21, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Tatsuya Niimi, Akio Kamikawa, Yasushi Amano, Tomohiko Yamaguchi, Kenichi Suzumura, Kentaro Enjo, Takashi Furutani, Akio Kakefuda, Yutaka Kondoh, Masaaki Hirano