Patents by Inventor Mitsuru Ohno

Mitsuru Ohno 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: 20210139611
    Abstract: A cellulose ester, wherein, in a structural formula of the following general formula (I), a degree of substitution where X is an acyl group is from 2.91 to 3.0; the acyl group includes benzoyl group (A) optionally having a substituent, and benzoyl group (B) optionally having a substituent different from that of benzoyl group (A); and when the degree of substitution is 3.0, a degree of substitution of benzoyl group (A) is from 1.5 to 2.9, and a degree of substitution of benzoyl group (B) is from 0.1 to 1.5, wherein all or some of X represents an acyl group; when some of X represents an acyl group, the remainder represents a group selected from a hydrogen atom and an alkyl group; and n represents an integer of from 20 to 20,000.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicant: Daicel Corporation
    Inventors: Tomohiro HASHIZUME, Hiroyuki MATSUMURA, Tohru SHIBATA, Hiroshi KOYAMA, Mitsuru OHNO, Tomoichi WATABE
  • Patent number: 10927190
    Abstract: A cellulose ester, wherein, in a structural formula of the following general formula (I), a degree of substitution where X is an acyl group is from 2.91 to 3.0; the acyl group includes benzoyl group (A) optionally having a substituent, and benzoyl group (B) optionally having a substituent different from that of benzoyl group (A); and when the degree of substitution is 3.0, a degree of substitution of benzoyl group (A) is from 1.5 to 2.9, and a degree of substitution of benzoyl group (B) is from 0.1 to 1.5, wherein all or some of X represents an acyl group; when some of X represents an acyl group, the remainder represents a group selected from a hydrogen atom and an alkyl group; and n represents an integer of from 20 to 20,000.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: February 23, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomohiro Hashizume, Hiroyuki Matsumura, Tohru Shibata, Hiroshi Koyama, Mitsuru Ohno, Tomoichi Watabe
  • Patent number: 10926230
    Abstract: Provided is a semipermeable membrane having a high chlorine resistance. The semipermeable membrane is formed of a cellulose ester, the cellulose ester having an optionally substituted benzoyl group.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: February 23, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Tomohiro Hashizume, Hiroyuki Matsumura, Tohru Shibata, Mitsuru Ohno
  • Publication number: 20200270368
    Abstract: Provided is a semipermeable membrane with high chlorine resistance and high alkali resistance. A cellulose mixed ester represented by a structural formula of General Formula (I), wherein when X is an aromatic acyl group, a degree of substitution is from 2.91 to 3.0; the aromatic acyl group includes a benzoyl group (A) that may include a substituent, and an aromatic acyl group (B) containing a carboxyl group or a salt of a carboxyl group; when the degree of substitution is 3.0, a degree of substitution of the benzoyl group (A) that may include a substituent is from 2.4 to 2.95, and a degree of substitution of the aromatic acyl group (B) containing a carboxyl group or a salt of a carboxyl group is from 0.05 to 0.6; and in General Formula (I), all or part of Xs are aromatic acyl groups; when part of Xs are aromatic acyl groups, the remainder represents a hydrogen atom or an alkyl group; and n represents an integer from 20 to 20000.
    Type: Application
    Filed: August 22, 2018
    Publication date: August 27, 2020
    Applicant: Daicel Corporation
    Inventors: Tomohiro HASHIZUME, Hiroyuki MATSUMURA, Tohru SHIBATA, Hiroshi KOYAMA, Mitsuru OHNO
  • Publication number: 20190161557
    Abstract: A cellulose ester, wherein, in a structural formula of the following general formula (I), a degree of substitution where X is an acyl group is from 2.91 to 3.0; the acyl group includes benzoyl group (A) optionally having a substituent, and benzoyl group (B) optionally having a substituent different from that of benzoyl group (A); and when the degree of substitution is 3.0, a degree of substitution of benzoyl group (A) is from 1.5 to 2.9, and a degree of substitution of benzoyl group (B) is from 0.1 to 1.5, wherein all or some of X represents an acyl group; when some of X represents an acyl group, the remainder represents a group selected from a hydrogen atom and an alkyl group; and n represents an integer of from 20 to 20,000.
    Type: Application
    Filed: April 4, 2017
    Publication date: May 30, 2019
    Applicant: Daicel Corporation
    Inventors: Tomohiro HASHIZUME, Hiroyuki MATSUMURA, Tohru SHIBATA, Hiroshi KOYAMA, Mitsuru OHNO, Tomoichi WATABE
  • Publication number: 20190151806
    Abstract: Provided is a semipermeable membrane having a high chlorine resistance. The semipermeable membrane is formed of a cellulose ester, the cellulose ester having an optionally substituted benzoyl group.
    Type: Application
    Filed: March 24, 2017
    Publication date: May 23, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Tomohiro HASHIZUME, Hiroyuki MATSUMURA, Tohru SHIBATA, Mitsuru OHNO
  • Patent number: 9261785
    Abstract: Provided is a polymer compound that has excellent sensitivity, high resolution, and small line edge roughness and is capable of forming a fine pattern precisely, and less causes post-develop defects. The polymer compound according to the present invention includes a monomer unit (a) and a monomer unit (b). The monomer unit (a) is represented by Formula (a), and the monomer unit (b) includes an alicyclic skeleton containing a polar group. The polar group of the monomer unit (b) is preferably at least one group selected from —O—, —C(?O)—, —C(?O)—O—, —O—C(?O)—O—, —C(?O)—O—C(?O)—, —C(?O)—NH—, —S(?O)—O—, —S(?O)2—O—, —ORa, —C(?O)—ORa, and —CN, where Ra represents, independently in each occurrence, optionally substituted alkyl.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 16, 2016
    Assignee: Daicel Corporation
    Inventors: Masamichi Nishimura, Akira Eguchi, Mitsuru Ohno
  • Patent number: 9206099
    Abstract: Provided is a method for efficiently producing high-purity hydrogenated biphenol based on a simple method that can be industrially utilized using easily-available biphenol as a starting material. The method for producing hydrogenated biphenol according to the present invention is a method for producing hydrogenated biphenol by hydrogenating biphenol represented by the following formula (1): to obtain hydrogenated biphenol represented by the following formula (2): the method including: a reaction step of hydrogenating the biphenol represented by formula (1); and a purification step of washing or crystallizing a reaction product obtained from the reaction step using an aromatic hydrocarbon.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: December 8, 2015
    Assignee: DAICEL CORPORATION
    Inventors: Mitsuru Ohno, Tomohiro Hashizume
  • Patent number: 9162950
    Abstract: Provided is a method for efficiently producing high-purity hydrogenated biphenol based on a simple method that can be industrially utilized using easily-available biphenol as a starting material. The method for producing hydrogenated biphenol according to the present invention is a method for producing hydrogenated biphenol by hydrogenating biphenol represented by the following formula (1): to obtain hydrogenated biphenol represented by the following formula (2): the method including: a reaction step of hydrogenating the biphenol represented by formula (1); and a purification step of washing or crystallizing a reaction product obtained from the reaction step using an aromatic hydrocarbon.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: October 20, 2015
    Assignee: DAICEL CORPORATION
    Inventors: Mitsuru Ohno, Tomohiro Hashizume
  • Publication number: 20150168831
    Abstract: Provided is a polymer compound that has excellent sensitivity, high resolution, and small line edge roughness and is capable of forming a fine pattern precisely, and less causes post-develop defects. The polymer compound according to the present invention includes a monomer unit (a) and a monomer unit (b). The monomer unit (a) is represented by Formula (a), and the monomer unit (b) includes an alicyclic skeleton containing a polar group. The polar group of the monomer unit (b) is preferably at least one group selected from —O—, —C(?O)—, —C(?O)—O—, —O—, —C(?O)—O—, —C(?O)—O—, —C(?O)—, —C(?O)—NH—, —S(?O)—O—, —S(?O)2—O—, —ORa, —C(?O) —ORa, and —CN, where Ra represents, independently in each occurrence, optionally substituted alkyl.
    Type: Application
    Filed: June 17, 2013
    Publication date: June 18, 2015
    Applicant: DAICEL CORPORATION
    Inventors: Masamichi Nishimura, Akira Eguchi, Mitsuru Ohno
  • Publication number: 20150099901
    Abstract: Provided is a method for efficiently producing high-purity hydrogenated biphenol based on a simple method that can be industrially utilized using easily-available biphenol as a starting material. The method for producing hydrogenated biphenol according to the present invention is a method for producing hydrogenated biphenol by hydrogenating biphenol represented by the following formula (1): to obtain hydrogenated biphenol represented by the following formula (2): the method comprising: a reaction step of hydrogenating the biphenol represented by formula (1); and a purification step of washing or crystallizing a reaction product obtained from the reaction step using an aromatic hydrocarbon.
    Type: Application
    Filed: March 28, 2013
    Publication date: April 9, 2015
    Applicant: DAICEL CORPORATION
    Inventors: Mitsuru Ohno, Tomohiro Hashizume
  • Patent number: 7985866
    Abstract: Disclosed is an oxetane-containing vinyl ether compound including one or more aromatic or non-aromatic carbocycles and/or two or more vinyl ether structures, such as a compound of Formula: wherein Ring Z1 is non-aromatic carbocycle; Ra is vinyl group of Formula: wherein each of R1, R2, and R3 is hydrogen or C1-C4 alkyl; Wa is single bond or organic group having a valence of (m+1); X1 is, for example, hydrocarbon; “m” and “q” are each 1 or 2; and “p” is 0 to 5. Also disclosed is an alicyclic epoxy-containing vinyl ether compound of Formula: wherein Ring Z2 is non-aromatic carbocycle; Rb is vinyl group of Formula: wherein R4, R5 and R6 are each hydrogen or C1-C4 alkyl; Wb is single bond or organic group having a valence of (r+1); Rc and Rd are hydrogen or alkyl; and “r” and “s” are 1 or 2.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: July 26, 2011
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Takahiro Iwahama, Tatsuya Nakano, Keizo Inoue, Hiroto Miyake, Tsukasa Yoshida, Mitsuru Ohno, Yoshinori Funaki
  • Patent number: 7476760
    Abstract: A method purifies 1-aminocyclopropanecarboxylic acid by subjecting a crude 1-aminocyclopropanecarboxylic acid to crystallization with a solvent mixture containing an organic acid having one to five carbon atoms and a poor solvent for 1-aminocyclopropanecarboxylic acid, which poor solvent is miscible with the organic acid. In the method, the solvent mixture may further contain water. Purification may be carried out by mixing the crude 1-aminocyclopropanecarboxylic acid with the organic acid having one to five carbon atoms, removing insoluble matter by filtration, and adding the poor solvent with or without water to the filtrate to thereby crystallize 1-aminocyclopropanecarboxylic acid.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: January 13, 2009
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Ryota Hamasaki, Mitsuru Ohno
  • Publication number: 20080234455
    Abstract: Disclosed is an oxetane-containing vinyl ether compound including one or more aromatic or non-aromatic carbocycles and/or two or more vinyl ether structures, such as a compound of Formula: wherein Ring Z1 is non-aromatic carbocycle; Ra is vinyl group of Formula: wherein each of R1, R2, and R3 is hydrogen or C1-C4 alkyl; Wa is single bond or organic group having a valence of (m+1); X1 is, for example, hydrocarbon; “m” and “q” are each 1 or 2; and “p” is 0 to 5. Also disclosed is an alicyclic epoxy-containing vinyl ether compound of Formula: wherein Ring Z2 is non-aromatic carbocycle; Rb is vinyl group of Formula: wherein R4, R5 and R6 are each hydrogen or C1-C4 alkyl; Wb is single bond or organic group having a valence of (r+1); Rc and Rd are hydrogen or alkyl; and “r” and “s” are 1 or 2.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 25, 2008
    Inventors: Takahiro Iwahama, Tatsuya Nakano, Keizo Inoue, Hiroto Miyake, Tsukasa Yoshida, Mitsuru Ohno, Yoshinori Funaki
  • Patent number: 7300712
    Abstract: In a magnetic sensor (1) including a substrate (10) having a magnetism-sensitive element (11) formed thereon, a hard membrane (14) is formed on the outermost surface, an organic film (13) to relieve the stress caused by the hard membrane (14) is formed under the hard membrane (14), and an inorganic film (12) to relieve the stress caused by the organic film (13) is formed between the organic film (13) and magnetism-sensitive element (11). Also, an intermediate film formed from an element having a large force of bonding to carbon may be formed between the organic film (13) and hard membrane (14). Thus, the magnetic sensor (MR sensor, for example) can be protected against an external shock.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: November 27, 2007
    Assignee: Sony Manufacturing Systems Corporation
    Inventors: Masaaki Kusumi, Mitsuru Ohno, Michio Okano, Hideki Nakamori, Touru Sumiya, Akitaka Tsunogae, Tomoyuki Nakada, Teruyuki Miura, Yoshihiko Ohkawara
  • Publication number: 20060030730
    Abstract: A method purifies 1-aminocyclopropanecarboxylic acid by subjecting a crude 1-aminocyclopropanecarboxylic acid to crystallization with a solvent mixture containing an organic acid having one to five carbon atoms and a poor solvent for 1-aminocyclopropanecarboxylic acid, which poor solvent is miscible with the organic acid. In the method, the solvent mixture may further contain water. Purification may be carried out by mixing the crude 1-aminocyclopropanecarboxylic acid with the organic acid having one to five carbon atoms, removing insoluble matter by filtration, and adding the poor solvent with or without water to the filtrate to thereby crystallize 1-aminocyclopropanecarboxylic acid.
    Type: Application
    Filed: July 19, 2005
    Publication date: February 9, 2006
    Inventors: Ryota Hamasaki, Mitsuru Ohno
  • Patent number: 6935043
    Abstract: In a scale device including a case member (8) having a guide opening (9) formed therein, seal lip members (12A, 12B), a carrier unit (13) having seal lip pressing means (22, 23) formed thereon, and a coupling member (16) which slides inside and relative to the guide opening (9), the seal lip members (12A, 12B) are pressed at end portions (12e, 12f) thereof by the seal lip pressing means (22, 23) in the vicinity of opposite end portions (16b, 16c) of the coupling member (16) to prevent the seal lip members (12A, 12B) from being spread. Thus, any gaps can be prevented from taking place between the seal lip members (12A, 12B) and coupling member (16) in the vicinity of the opposite end portions (12e, 12f) of the latter. Therefore, dust or the like can be prevented from entering the case member (8).
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: August 30, 2005
    Assignee: Sony Precision Technology Inc.
    Inventors: Gunichi Nakamura, Mitsuru Ohno
  • Patent number: 6931741
    Abstract: In a scale device including a scale unit (4) and detector (5), the scale unit (4) includes a scale member (6) formed from a long material and having at least a pair of fixing holes (12) formed therein across a position signal carrying area (11) defined thereon and which carries position signals, and a case member (7) housing the scale member (6) therein and having formed therein a pair of fixing holes (15) through which there is inserted a fastening member (13) to be screwed into a mounting hole (10) formed in a stationary part (2) of a machine to which the scale device is to be installed. The detector (5) is fixed to a moving part (3) of the machine, which moves relative to the stationary part (2), and includes a sensor (29) which moves oppositely to the position signal carrying area (11) on the scale member (6). The scale unit (4) is fixed to the stationary part (2) with the scale member (6) and case member (7) being fastened together by the fastening member (13).
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 23, 2005
    Assignee: Sony Precision Technology Inc.
    Inventors: Gunichi Nakamura, Mitsuru Ohno
  • Publication number: 20040157067
    Abstract: In a magnetic sensor (1) including a substrate (10) having a magnetism-sensitive element (11) formed thereon, a hard membrane (14) is formed on the outermost surface, an organic film (13) to relieve the stress caused by the hard membrane (14) is formed under the hard membrane (14), and an inorganic film (12) to relieve the stress caused by the organic film (13) is formed between the organic film (13) and magnetism-sensitive element (11). Also, an intermediate film formed from an element having a large force of bonding to carbon may be formed between the organic film (13) and hard membrane (14). Thus, the magnetic sensor (MR sensor, for example) can be protected against an external shock.
    Type: Application
    Filed: October 20, 2003
    Publication date: August 12, 2004
    Applicant: Sony Precision Technology Inc.
    Inventors: Masaaki Kusumi, Mitsuru Ohno, Michio Okano, Hideki Nakamori, Touru Sumiya, Akitaka Tsunogae, Tomoyuki Nakada, Teruyuki Miura, Yoshihiko Ohkawara
  • Publication number: 20040154181
    Abstract: In a scale device including a scale unit (4) and detector (5), the scale unit (4) includes a scale member (6) formed from a long material and having at least a pair of fixing holes (12) formed therein across a position signal carrying area (11) defined thereon and which carries positions signals, and a case member (7) housing the scale member (6) therein and having formed therein a pair of fixing holes (15) through which there is penetrated a fastening member (13) to be screwed into a mounting hole (10) formed in a stationary part (2) of a machine to which the scale device is to be installed. The detector (5) is fixed to a moving part (3) of the machine, which moves relative to the stationary part (2), and includes a sensor (29) which moves oppositely to the position signal carrying area (11) on the scale member (6). The scale unit (4) is fixed to the stationary part (2) with the scale member (6) and case member (7) being fastened together by the fastening member (13).
    Type: Application
    Filed: September 30, 2003
    Publication date: August 12, 2004
    Applicant: Sony Precision Technology Inc.
    Inventors: Gunichi Nakamura, Mitsuru Ohno