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).

  • NEUTRON BEAM TRANSMISSION ADJUSTING DEVICE, METHOD FOR PRODUCING NEUTRON BEAM TRANSMISSION ADJUSTING DEVICE, AND NEUTRON BEAM ADJUSTING METHOD
    Publication number: 20210008391
    Abstract: Provided is a neutron beam transmission adjusting device including a neutron beam transmission unit including a neutron reactant and capable of modulating the energy and/or the flux of a neutron beam transmitted through the neutron beam transmission unit.
    Type: Application
    Filed: May 5, 2020
    Publication date: January 14, 2021
    Inventors: Tatsuya NIIMI, Takashi MATSUMURA, Takuya SAITO, Takeshi KAMOMAE
  • Method of manufacturing three-dimensional object, liquid set for manufacturing three-dimensional object, device for manufacturing three-dimensional object, and gel object
    Patent number: 10882245
    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: Grant
    Filed: June 28, 2016
    Date of Patent: January 5, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Iwata, Yoshihiro Norikane, Takashi Matsumura, Tatsuya Niimi, Hiroyuki Naito
  • Solid freeform fabrication object, internal organ model, and method of manufacturing the same
    Patent number: 10854113
    Abstract: A solid freeform fabrication object includes a hydrogel including a polymer, water, and a coloring material inclusion substance.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 1, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihiro Norikane, Tatsuya Niimi, Takashi Matsumura, Hiroshi Iwata, Hiroyuki Naito
  • SOLID FREEFORM FABRICATION OBJECT, METHOD OF MANUFACTURING SOLID FREEFORM FABRICATION OBJECT, LIQUID SET FOR SOLID FREEFORM FABRICATION, AND DEVICE FOR MANUFACTURING SOLID FREEFORM FABRICATION OBJECT
    Publication number: 20200269490
    Abstract: A solid freeform fabrication object includes a plurality of parts formed of hydrogels having respective physical properties, wherein the hydrogels having respective physical properties, each having a moisture content of 70 percent by mass or greater, wherein a solvent concentration difference between the hydrogel constituting adjacent parts of the plurality of parts is 5 percent by mass or less.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Inventors: Tatsuya NIIMI, Takashi MATSUMURA, Takuya SAITO
  • ULTRASONIC PROPAGATION MEMBER AND METHOD FOR PRODUCING SAME
    Publication number: 20200138407
    Abstract: Provided is an ultrasonic propagation member used in contact with a test target, wherein a surface of the ultrasonic propagation member contacting the test target has a shape conforming to a surface of the test target, or an ultrasonic propagation member having at least two surfaces, wherein hardness of one surface and hardness of another surface are different.
    Type: Application
    Filed: October 15, 2019
    Publication date: May 7, 2020
    Inventors: Tatsuya NIIMI, Takashi Matsumura, Takuya Saito
  • Bolus and method for producing same
    Patent number: 10589125
    Abstract: Provided is a bolus formed of a hydrogel, wherein the hydrogel includes water, a polymer, and a mineral, and wherein the bolus is applied to a patient who receives a radiation therapy.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: March 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Niimi, Yoshihiro Norikane, Takashi Matsumura, Hiroshi Iwata, Hiroyuki Naito
  • Active energy ray curable liquid composition, method for manufacturing three-dimensional objects, and apparatus for manufacturing three-dimensional objects
    Patent number: 10584194
    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: Grant
    Filed: June 22, 2017
    Date of Patent: March 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Iwata, Yoshihiro Norikane, Tatsuya Niimi, Takashi Matsumura, Hiroyuki Naito
  • ACTIVE ENERGY RAY CURABLE LIQUID, METHOD OF MANUFACTURING FABRICATION OBJECT, RESIN FABRICATION OBJECT, AND GEL FABRICATION OBJECT
    Publication number: 20200071432
    Abstract: An active energy ray curable liquid contains an unsaturated acid monomer and a metal salt.
    Type: Application
    Filed: August 21, 2019
    Publication date: March 5, 2020
    Inventors: Takashi MATSUMURA, Tatsuya NIIMI, Takuya SAITO
  • HYDROGEL OBJECT AND METHOD OF MANUFACTURING HYDROGEL OBJECT
    Publication number: 20190381784
    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: August 30, 2019
    Publication date: December 19, 2019
    Inventors: Hiroshi Iwata, Tatsuya Niimi, Yoshihiro Norikane, Takashi Matsumura
  • Hydrogel object and method of manufacturing hydrogel object
    Patent number: 10442181
    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: Grant
    Filed: July 13, 2016
    Date of Patent: October 15, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Iwata, Tatsuya Niimi, Yoshihiro Norikane, Takashi Matsumura
  • HYDROGEL STRUCTURE, METHOD OF MANUFACTURING HYDROGEL STRUCTURE, AND INTERNAL ORGAN MODEL
    Publication number: 20190300628
    Abstract: A hydrogel structure contains a hydrogel body containing water, a polymer, and a mineral, and a film on the surface of the hydrogel body, wherein the film has a peeling-off strength of 1.0 N/mm or more.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Takuya SAITO, Takashi MATSUMURA, Tatsuya NIIMI
  • Solid freeform fabrication material set, method of fabricating solid freeform object, method of fabricating dental prosthesis, and device for fabricating solid freeform object
    Patent number: 10391755
    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: Grant
    Filed: October 17, 2016
    Date of Patent: August 27, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaki Watanabe, Tatsuya Niimi, Teruki Kusahara, Yoichi Sakurai, Kohichiroh Tanaka
  • ULTRASONIC INSPECTION PHANTOM AND METHOD OF MANUFACTURING SAME
    Publication number: 20190175151
    Abstract: An ultrasonic inspection phantom includes ultrasonic inspection phantom including a hydrogel including water, a polymer, and a mineral.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 13, 2019
    Inventors: Tatsuya NIIMI, Takashi MATSUMURA, Takuya SAITO
  • Dihydroxy aromatic heterocyclic compound
    Patent number: 10202399
    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: December 22, 2016
    Date of Patent: February 12, 2019
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
  • ACTIVE-ENERGY-RAY-CURABLE COMPOSITION, THREE-DIMENSIONAL OBJECT PRODUCING METHOD, AND THREE-DIMENSIONAL OBJECT PRODUCING APPARATUS
    Publication number: 20190010259
    Abstract: Provided is an active-energy-ray-curable composition including: a monomer (A) having a hydrogen-bonding capacity; and a compound (B) having a hydrogen-bonding capacity and containing straight-chain alkyl containing 4 or more carbon atoms, wherein a cured product of the active-energy-ray-curable composition is a solid that exhibits a compressive stress of 2 kPa or higher in response to compression by 1%, and wherein the active-energy-ray-curable composition is a liquid in an environment of 60 degrees C.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Hiroshi IWATA, Tatsuya NIIMI, Yoshihiro NORIKANE, Takashi MATSUMURA, Hiroyuki NAITO
  • BOLUS AND METHOD FOR PRODUCING SAME
    Publication number: 20180345036
    Abstract: Provided is a bolus formed of a hydrogel, wherein the hydrogel includes water, a polymer, and a mineral, and wherein the bolus is applied to a patient who receives a radiation therapy.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 6, 2018
    Inventors: Tatsuya NIIMI, Yoshihiro Norikane, Takashi Matsumura, Hiroshi Iwata, Hiroyuki Naito
  • THREE-DIMENSIONAL OBJECT, THREE-DIMENSIONAL OBJECT PRODUCING METHOD, THREE-DIMENSIONAL OBJECT PRODUCING APPARATUS, MATERIAL SET FOR PRODUCING THREE-DIMENSIONAL OBJECT, AND HYDROGEL PRECURSOR LIQUID
    Publication number: 20180345574
    Abstract: Provided is a three-dimensional object including a hydrogel containing water as a main component, wherein the three-dimensional object contains a chelate agent.
    Type: Application
    Filed: July 23, 2018
    Publication date: December 6, 2018
    Inventors: Takashi MATSUMURA, Yoshihiro Norikane, Tatsuya Niimi, Hiroshi Iwata
  • MATERIAL SET FOR FORMING THREE-DIMENSIONAL OBJECT, THREE-DIMENSIONAL OBJECT PRODUCING METHOD, AND THREE-DIMENSIONAL OBJECT PRODUCING APPARATUS
    Publication number: 20180237610
    Abstract: Provided is a material set for forming a three-dimensional object, the material set including: a first liquid material for forming a three-dimensional object; and a second liquid material for forming a three-dimensional object, wherein the first liquid material contains a solvent, an organic compound A, and inorganic particles, and wherein the second liquid material contains an organic compound B having reactivity with the organic compound A.
    Type: Application
    Filed: April 17, 2018
    Publication date: August 23, 2018
    Inventors: Masaki WATANABE, Takuya SAITO, Yoichi SAKURAI, Tatsuya NIIMI
  • METHOD OF MANUFACTURING SOLID FREEFORM FABRICATION OBJECT AND DEVICE FOR MANUFACTURING SOLID FREEFORM FABRICATION
    Publication number: 20180126651
    Abstract: A method of manufacturing a solid freeform fabrication object includes curing a liquid film made of an active energy ray curable liquid composition to form a layer; and laminating the layer to obtain the solid freeform fabrication object, wherein the solid freeform fabrication object is manufactured at an absolute humidity of from 5.5 to 20 g/m3.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 10, 2018
    Inventors: Takashi MATSUMURA, Yoshihiro Norikane, Tatsuya Niimi, Hiroshi Iwata, Noriaki Okada
  • HYDROGEL STRUCTURE, BLOOD VESSEL, INTERNAL ORGAN MODEL, PRACTICE TOOL FOR MEDICAL PROCEDURE, AND METHOD OF MANUFACTURING THE HYDROGEL STRUCTURE
    Publication number: 20180061279
    Abstract: A hydrogel structure includes a hollow tubular structure having an inner diameter of 1.0 mm or less, wherein the hydrogel structure has a transmission of 80 percent or more in a visible light range.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Tatsuya NIIMI, Yoshihiro Norikane, Takashi Matsumura, Hiroshi Iwata, Noriaki Okada, Takuya Saito