1145 patents
Page 3 of 58
Utility
Magnetic Circuit Device for Magnetic Bearing
14 Dec 23
In a magnetic circuit device for a magnetic bearing that includes a permanent magnet ring constituted by a plurality of permanent magnets and a soft magnetic material ring, the circumferential uniformity of the magnetic field near an axial end surface of the permanent magnet ring is enhanced.
Hiroyuki OTA
Filed: 1 Jun 23
Utility
Chemically Amplified Positive Resist Composition and Resist Pattern Forming Process
7 Dec 23
A chemically amplified positive resist composition is provided comprising (A) a quencher in the form of a sulfonium salt of carboxylic acid having a nitrogen-bearing heterocycle and (B) a base polymer containing a specific polymer which is decomposed under the action of acid to increase its solubility in alkaline developer.
Keiichi Masunaga, Masahiro Fukushima, Masaaki Kotake, Satoshi Watanabe
Filed: 23 May 23
Utility
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7 Dec 23
To provide a method for producing a composite wafer including preparing a supporting substrate which is either lithium tantalate or lithium niobate and is substantially not polarized, preparing an active substrate which is either lithium tantalate or lithium niobate stuck on one surface side of the supporting substrate and is polarized, generating an interface by implanting an ion into the active substrate, sticking the supporting substrate and the active substrate, raising temperatures of the supporting substrate and the active substrate which are stuck to each other, and delaminating the active substrate at the interface.
Shoji AKIYAMA
Filed: 16 Aug 23
Utility
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7 Dec 23
A resist composition comprising a sulfonium salt of carboxylic acid having a coumarin or thiocoumarin structure as the quencher is provided.
Jun Hatakeyama, Tomomi Watanabe
Filed: 2 Jun 23
Utility
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7 Dec 23
Provided are a manufacturing method for a composite wafer and a composite wafer obtained by using the manufacturing method, the manufacturing method including: preparing a first substrate in which a first layer of any one of oxides, oxynitrides, and nitrides is disposed on one surface; preparing a second substrate in which a second layer of any one of oxides, oxynitrides, and nitrides is disposed on one surface; forming a silicon layer on a surface of one of the first layer or the second layer; activating, with plasma, a surface of at least one of the silicon layer or another of the first layer or the second layer; and bonding the first substrate and the second substrate.
Shoji AKIYAMA
Filed: 16 Aug 23
Utility
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7 Dec 23
A resist composition comprising a sulfonium salt of carboxylic acid having a chromone structure as the quencher is provided.
Jun Hatakeyama, Tomomi Watanabe
Filed: 2 Jun 23
Utility
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7 Dec 23
Yuki Miyake, Takeru Watanabe, Yusuke Nagae
Filed: 1 Jun 23
Utility
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7 Dec 23
A chemically amplified positive resist composition is provided comprising (A) an acid generator containing a specific sulfonium salt and/or a specific iodonium salt and (B) a base polymer containing a specific polymer which is decomposed under the action of acid to increase its solubility in alkaline developer.
Keiichi Masunaga, Masahiro Fukushima, Masaaki Kotake, Satoshi Watanabe
Filed: 19 May 23
Utility
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7 Dec 23
A chemically amplified negative resist composition comprising (A) an acid generator in the form of a sulfonium salt having formula (A1) or iodonium salt having formula (A2) and (B) a base polymer containing a polymer comprising repeat units having formula (B1) is provided.
Keiichi Masunaga, Masahiro Fukushima, Masaaki Kotake, Satoshi Watanabe
Filed: 23 May 23
Utility
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7 Dec 23
A chemically amplified negative resist composition is provided comprising (A) a quencher in the form of a sulfonium salt of carboxylic acid having a nitrogen-bearing heterocycle and (B) a base polymer containing a specific polymer.
Keiichi Masunaga, Masahiro Fukushima, Masaaki Kotake, Satoshi Watanabe
Filed: 23 May 23
Utility
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30 Nov 23
Shigeki YASUDA, Tsuneo KIMURA, Munenao HIROKAMI, Masaki TANAKA, Naoki TANAKA
Filed: 27 Sep 21
Utility
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30 Nov 23
An onium salt compound consisting of a sulfonate anion having the structure that a polymerizable unsaturated bond is linked to an iodized aromatic group via a carbon chain of two or more carbon atoms and a sulfonium or iodonium cation is provided.
Tomomi Watanabe, Takayuki Fujiwara, Tomonari Noguchi
Filed: 15 May 23
Utility
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30 Nov 23
A method for producing a light emitting diode supply substrate for transferring a plurality of light emitting diodes to a supply destination, including: a first mounting step of mounting a plurality of light emitting diodes on a supply substrate; a selective removal step of selectively removing defective light emitting diodes on the supply substrate, and a second mounting step of transferring a normal light emitting diode to a position where the defective light emitting diode has been arranged on the supply substrate.
Hideo NAKAGAWA, Yoshinori OGAWA, Nobuaki MATSUMOTO, Kazunori KONDO
Filed: 27 Sep 21
Utility
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30 Nov 23
A carbon black dispersion composition for batteries contains carbon black, a dispersant, N-methyl-2-pyrrolidone, and from 0.0001 to 5 parts by weight of a hindered phenolic compound per 100 parts by weight of carbon black.
Keiichi KOMATSUKI, Shingo NIINOBE
Filed: 23 May 23
Utility
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23 Nov 23
Ryuto HAYASHI, Hidenori KOSHIKAWA, Kenichi FUKUDA
Filed: 4 Oct 21
Utility
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23 Nov 23
Masahiro FUKUSHIMA, Jun HATAKEYAMA, Koji HASEGAWA
Filed: 12 May 23
Utility
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16 Nov 23
A reflective photomask blank includes a substrate, a multilayer reflection film that reflects exposure light being light in extreme ultraviolet range, a protection film, a light-absorbing film that absorbs the exposure light, and a hard mask film that is formed in contact with the light-absorbing film.
Keisuke SAKURAI, Shohei MIMURA, Takeshi ISHII
Filed: 27 Apr 23
Utility
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16 Nov 23
A photomask blank has a resist film which is obtained by coating a chemically amplified positive resist composition comprising a polymer comprising phenolic hydroxy-containing repeat units and repeat units having a carboxy group which is protected with an acid labile group in the form of a tertiary hydrocarbyl group having an electron attractive moiety and/or hydroxy-substituted phenyl moiety bonded to the tertiary carbon, and an organic solvent.
Keiichi Masunaga, Jun Hatakeyama, Satoshi Watanabe, Kenji Funatsu, Masahiro Fukushima, Masaaki Kotake
Filed: 9 May 23
Utility
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16 Nov 23
A method of manufacturing a display device capable of reducing tact time includes: a transfer step of arranging an anisotropic conductive adhesive layer provided on a base material that is transparent to laser light and a wiring board to face each other, and irradiating laser light from the base material side so that individual pieces of the anisotropic conductive adhesive layer are transferred to and arranged at predetermined positions on the wiring board; and a mounting step of mounting light-emitting elements on the individual pieces arranged at the predetermined positions on the wiring board.
Daiki NODA, Reiji TSUKAO, Toshiki SHIRAIWA, Kazumu WATANABE, Naoki HAYASHI, Hiroshi YAMAOKA, Satoki NAKADA, Takeshi SAITO, Nobutaka UEMORI
Filed: 23 Mar 22
Utility
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16 Nov 23
Provided are titanium oxide particles having a higher photocatalytic activity, particularly a higher visible light activity as compared to the conventional ones; a dispersion liquid thereof; a photocatalyst thin film formed using such dispersion liquid; a member having such photocatalyst thin film on its surface; and a method for producing the titanium oxide particle dispersion liquid.
Manabu FURUDATE, Tomohiro INOUE, Mikiya HINOUE
Filed: 3 Sep 21