223 patents
Page 4 of 12
Utility
Photochromic curable composition
7 Mar 23
A photochromic curable composition comprising a radically polymerizable monomer having at least one oxetanyl group in one molecule, a photochromic compound and radically polymerizable monomers other than the above polymerizable monomer, and a photochromic cured body obtained by polymerizing the photochromic curable composition.
Ayako Ohara, Junji Takenaka, Junji Momoda
Filed: 22 Mar 19
Utility
Method for manufacturing polycrystalline silicon fragment and polycrystalline silicon block fracture device
28 Feb 23
A polycrystalline silicon block fracture device includes a fracturing part mechanically fracturing a polycrystalline silicon block material to produce a polycrystalline silicon fragment including a polycrystalline silicon powder having a particle size of 500 to 1000 μm then discharging from a discharging port; a falling movement part continuous with a downstream of the fracturing part allowing said polycrystalline silicon fragment discharged from the discharging port to fall by gravity; a receiver part positioned at downstream of the falling movement part and receives the polycrystalline silicon fragment after falling through the falling movement part; and the falling movement part includes a suction removing part in which at least part of the polycrystalline silicon powder included in the polycrystalline silicon fragment is removed by suctioning to a different direction from falling direction; the suction removing part suctions at a suction rate of 1 to 20 m3/min.
Kazuhiro Kawaguchi, Masami Fujii, Sho Uchida, Manabu Kondo, Yoshifumi Mito, Nobuaki Yoshimatsu
Filed: 16 Apr 19
Utility
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16 Feb 23
Provided is a method for producing a halogenated hydrocarbon magnesium compound, the method including bringing a halogenated hydrocarbon compound into contact with magnesium having a specific surface area of 1×10−5 to 2×10−4 m2/g.
Hiroyuki Oda, Ryosuke Nishimoto, Daisuke Abiko, Takenori Isomura
Filed: 21 Jan 21
Utility
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14 Feb 23
The present invention provides an optical composition from which an optical article having reduced poor appearance such as cloudiness and optical strain during lens base material production can be obtained, and when a photochromic compound is added, a photochromic cured body having excellent photochromism and mechanical strength can also be formed, and a polyrotaxane used therefor.
Yasutomo Shimizu, Katsuhiro Mori, Junji Momoda, Hiromasa Yamamoto
Filed: 10 Oct 19
Utility
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7 Feb 23
Provided is a method of producing a quaternary alkyl ammonium hypochlorite solution with an excellent storage stability.
Takafumi Shimoda, Yuki Kikkawa, Tomoaki Sato, Takayuki Negishi
Filed: 13 Jun 22
Utility
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7 Feb 23
A method for producing a quaternary alkylammonium hypochlorite solution includes a preparation step of preparing a quaternary alkylammonium hydroxide solution, and a reaction step of bringing the quaternary alkylammonium hydroxide solution into contact with chlorine, wherein a carbon dioxide concentration in a gas phase portion in the reaction step is 100 ppm by volume or less, and pH of a liquid phase portion in the reaction step is 10.5 or more.
Takafumi Shimoda, Yuki Kikkawa, Takayuki Negishi, Seiji Tono
Filed: 20 May 19
Utility
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26 Jan 23
The present invention relates to a microballoon.
Yasutomo SHIMIZU, Takayoshi KAWASAKI
Filed: 10 Dec 20
Utility
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26 Jan 23
An electrolysis element for alkaline water electrolysis includes: an electroconductive separating wall including a first face and a second face; an anode for generating oxygen; a cathode for generating hydrogen; a first connecting means fixing the anode to the separating wall such that the anode faces the first face of the separating wall at a first distance, and electrically connecting the anode to the separating wall; an electroconductive elastic body supporting the cathode; and a cathode current collector supporting the elastic body, the cathode current collector being fixed to the separating wall, to face the second face of the separating wall at a second distance, and being electrically connected to the separating wall, the first connecting means including: an electroconductive bolt including at least a shaft, wherein the anode is removably fixed to the separating wall by means of the electroconductive bolt.
Yasuyuki TANAKA, Hitoshi MATSUI
Filed: 23 Mar 21
Utility
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24 Jan 23
A method for producing isopropyl alcohol is provided in which propylene is hydrated directly with water to produce isopropyl alcohol, the method including: a distillation step in which crude isopropyl alcohol is distilled; and a filtration step in which the isopropyl alcohol obtained in the distillation step is filtered through a filter having an ion-exchange group.
Akira Sera, Masashi Shinagawa, Masanari Ishizuki
Filed: 3 Oct 19
Utility
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19 Jan 23
Shota DAIKI, Yuuki HIROZANE
Filed: 7 Dec 20
Utility
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5 Jan 23
The present invention relates to a method for producing a metal nitride, which is a method for synthesizing a metal nitride by igniting a raw material powder containing a metal powder housed in a reaction vessel (2) under a nitrogen atmosphere and propagating nitriding combustion heat of the metal powder to the whole of the housed raw material powder, characterized in that the raw material powder is housed in the reaction vessel (2) as a molded body (1B) having a void ratio of 40 to 70%.
Satoru WAKAMATSU, Koji AKIMOTO
Filed: 2 Dec 20
Utility
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5 Jan 23
The present invention decreases the impurity concentration of polycrystalline silicon to be produced.
Koichi ISHIKAWA
Filed: 24 Sep 20
Utility
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29 Dec 22
Akihiro SAITO, Dai TSUNODA, Masayuki MORIWAKI
Filed: 3 Dec 20
Utility
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29 Dec 22
The present invention relates to a method for producing a metal nitride by igniting a raw material powder containing a metal powder filled in a reaction vessel under a nitrogen atmosphere and propagating nitriding combustion heat generated by a nitriding reaction of the metal to the whole raw material powder, the method including forming a heat insulating layer made of a material having nitrogen permeability and inert to the nitriding reaction on an upper surface of a layer made of the raw material powder.
Satoru WAKAMATSU, Koji AKIMOTO
Filed: 2 Dec 20
Utility
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29 Dec 22
The present invention provides a semiconductor wafer treatment liquid, the treatment liquid including at least one hypohalite ion, and at least one anion species selected from halate ion, halite ion and halide ion, wherein at least one of the anion species has a content of 0.30 mol/L or more and 6.00 mol/L or less relative to the treatment liquid.
Tomoaki SATO, Yuki KIKKAWA, Takafumi SHIMODA, Takayuki NEGISHI
Filed: 25 Nov 21
Utility
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22 Dec 22
A method for producing a polycrystalline silicon rod includes: while energizing a core wire formed of silicon, supplying a polycrystalline silicon deposition raw material gas into a reactor so as to perform gas phase growth of polycrystalline silicon on a surface of the core wire, in which during a period from a completion of cleaning of the surface of the above core wire to an installation of the core wire in the reactor, the silicon core wire is placed in an atmosphere adjusted to a cleanliness of Class 4 to Class 6 as defined in ISO 14644-1.
Takamitsu Kamikawa, Miki Emoto, Takuya Asano
Filed: 20 Aug 20
Utility
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22 Dec 22
Toshirou MABUCHI, Satoru WAKAMATSU
Filed: 26 Nov 20
Utility
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22 Dec 22
Yoshiki SEIKE, Seiji TONO, Kenji KOBAYASHI, Sei NEGORO
Filed: 23 Aug 22
Utility
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8 Dec 22
A method for producing microballoons consisting of a polyurethane (urea) produced by an interfacial polyaddition reaction method with a W/O emulsion and having excellent dispersibility is provided.
Yasutomo SHIMIZU, Takayoshi KAWASAKI
Filed: 23 Sep 20
Utility
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1 Dec 22
A rod-shaped body (10) is used to lift a cover (103) so as to detach the cover from a bottom plate (101), together with which the cover (103) forms a reactor (100).
Kazuhiro KAWAGUCHI
Filed: 28 May 20