Patents by Inventor Akihiro Baba

Akihiro Baba 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: 20250380688
    Abstract: An aspect of the present invention provides a sustained release pheromone preparation comprising at least a carboxylic acid compound, the carboxylic acid compound being a sex pheromone; and a container having the carboxylic acid compound enclosed therein, wherein the container comprises, as at least a part of the container, a membrane of a linear aliphatic polyester having at least one selected from the following repeating unit (I): in which X and Y represent, independently of each other, a divalent hydrocarbon group having 1 to 8 carbon atoms. Another aspect of the present invention provides a method for controlling a pest, the method comprising at least a step of placing the aforesaid sustained release pheromone preparation in a field to release the aforesaid carboxylic acid compound from inside the sustained release pheromone preparation.
    Type: Application
    Filed: June 4, 2025
    Publication date: December 18, 2025
    Inventors: Tatsuya HOJO, Takeru WATANABE, Yuki MIYAKE, Akihiro BABA
  • Publication number: 20250270152
    Abstract: The present invention provides a process for preparing a 2-(3-alkenyl)-1,3-butadiene compound of the following general formula (A), wherein R1 and R2 represent, independently of each other, a hydrogen atom or a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), the process comprising the step of subjecting a secondary allylsulfone compound of the following general formula (G), wherein R1 and R2 represent, independently of each other, a hydrogen atom or a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), W represents an arenesulfonyl group, and Z represents a halogen atom, to a reductive removal of an arenesulfonyl group, W, at an allyl position, and then subjecting the secondary allylsulfone compound (G) to an elimination reaction of a hydrogen halide, HZ, in this order or in reverse order, to form the 2-(3-alkenyl)-1,3-butadiene compound (A).
    Type: Application
    Filed: January 14, 2025
    Publication date: August 28, 2025
    Inventors: Takeshi KINSHO, Yusuke NAGAE, Akihiro BABA, Takeru WATANABE
  • Publication number: 20250230109
    Abstract: The present invention provides a process for preparing a 4-substituted 3-methyl-1,3-butadiene compound of the following general formula (A), wherein R represents a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), the process comprising steps of subjecting a primary allylsulfone compound of the following general formula (D), wherein R represents a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), X represents a halogen atom, and W represents an arenesulfonyl group, to a reductive removal of the arenesulfonyl group, W, to form a halide compound of the following general formula (B), wherein R represents a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and optionally having an unsaturated bond(s), and X represents a halogen atom; and subjecting the aforesaid halide compound (B) to an elimination reaction of a hydrogen halide, HX, to form the afores
    Type: Application
    Filed: January 14, 2025
    Publication date: July 17, 2025
    Inventors: Takeshi KINSHO, Yusuke NAGAE, Akihiro BABA, Takeru WATANABE
  • Patent number: 12312309
    Abstract: Provided is a 3-acyloxymethyl-3-butenal acetal compound of General Formula (10): wherein R1 and R2, which may be the same or different, are each an alkyl group having 1 to 6 carbon atoms, or are bonded to each other to form a divalent alkylene group having 2 to 12 carbon atoms, and X1 is an acyloxy group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: September 21, 2023
    Date of Patent: May 27, 2025
    Assignee: SHIN-ETSU CHEMICAL CO, LTD.
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Patent number: 12312310
    Abstract: A method for producing 7-methyl-3-methylene-7-octenal of Formula (2) is provided and includes a step of hydrolyzing a 7-methyl-3-methylene-7-octenal acetal compound of General Formula (1): wherein R1 and R2, which may be the same or different, are each analkyl group having 1 to 6 carbon atoms, or are bonded to each other to form a divalent alkylene group having 2 to 12 carbon atoms to obtain the 7-methyl-3-methylene-7-octenal (2).
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: May 27, 2025
    Assignee: SHIN-ETSU CHEMICAL CO, LTD.
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Patent number: 11958801
    Abstract: A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8-nonenyl compound, of the following general formula (1): wherein M1 represents Li, MgZ1, ZnZ1, Cu, CuZ1, or CuLiZ1, wherein Z1 represents a halogen atom or a 5-isopropenyl-2-methyl-8-nonenyl group, from a 5-isopropenyl-2-methyl-8-nonenyl halide compound of the following general formula (4): wherein X1 represents a halogen atom; subjecting the nucleophilic reagent (1), 5-isopropenyl-2-methyl-8-nonenyl compound, to an addition reaction with at least one electrophilic reagent selected from the group consisting of formaldehyde, paraformaldehyde, and 1,3,5-trioxane, followed by a hydrolysis reaction to form 6-isopropenyl-3-methyl-9-decenol of the following formula (2); and acetylating 6-isopropenyl-3-methyl-9-decenol (2) to form 6-isopropenyl-3-methyl-9-decenyl acetate (3).
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: April 16, 2024
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akihiro Baba, Takeshi Kinsho, Yusuke Nagae
  • Publication number: 20240067595
    Abstract: Provided is a 3-acyloxymethyl-3-butenal acetal compound of General Formula (10): wherein R1 and R2, which may be the same or different, are each an alkyl group having 1 to 6 carbon atoms, or are bonded to each other to form a divalent alkylene group having 2 to 12 carbon atoms, and X1 is an acyloxy group having 1 to 6 carbon atoms.
    Type: Application
    Filed: September 21, 2023
    Publication date: February 29, 2024
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Patent number: 11897842
    Abstract: A method for producing a 7-methyl-3-methylene-7-octenyl carboxylate compound (1), the method including the step of coupling a nucleophilic reagent of General Formula (8): wherein M is a cationic moiety, with an acetal compound of General Formula (9): wherein R1 and R2, which may be the same or different, are each an alkyl group having 1 to 6 carbon atoms, or are bonded to each other to form a divalent alkylene group having 2 to 12 carbon atoms, and X is a leaving group, to obtain the 7-methyl-3-methylene-7-octenal acetal compound.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: February 13, 2024
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Patent number: 11889365
    Abstract: Provided is a base station device including: a scheme selection unit that selects a scheme of HO from a first scheme not using an NRT and a second scheme using the NRT; and an HO control unit that, when the first scheme is selected, causes the UE to measure system information of an HO candidate cell, receives an ECGI, and controls HO by using cell information of the HO candidate cell received from a core network by using the ECGI, and, when the second scheme is selected and the PCI of the HO candidate cell is included in the NRT, controls the HO by using cell information corresponding to the PCI, and when the PCI is not included, causes the UE to measure the system information of the HO candidate cell, receives the ECGI, controls the HO by using the cell information of the HO candidate cell.
    Type: Grant
    Filed: June 22, 2023
    Date of Patent: January 30, 2024
    Assignee: SoftBank Corp.
    Inventors: Akihiro Baba, Mizuki Funakoshi, Yonghong Tan
  • Publication number: 20240025837
    Abstract: A method for producing 7-methyl-3-methylene-7-octenal of Formula (2) is provided and includes a step of hydrolyzing a 7-methyl-3-methylene-7-octenal acetal compound of General Formula (1): wherein R1 and R2, which may be the same or different, are each analkyl group having 1 to 6 carbon atoms, or are bonded to each other to form a divalent alkylene group having 2 to 12 carbon atoms to obtain the 7-methyl-3-methylene-7-octenal (2).
    Type: Application
    Filed: September 22, 2023
    Publication date: January 25, 2024
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Patent number: 11807602
    Abstract: The present invention relates to a process for preparing a 3-isopropenyl-6-heptenal compound of the following formula (2): wherein R1 represents a hydrogen atom or a methyl group, the process comprising: subjecting a 3-isopropenyl-6-heptenoate ester compound of the following formula (1): wherein R1 is as defined above, and R2 represents a monovalent hydrocarbon group having 1 to 10 carbon atoms, to a reduction reaction with a reducing agent to form the 3-isopropenyl-6-heptenal compound (2).
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: November 7, 2023
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akihiro Baba, Takeshi Kinsho, Naoki Ishibashi, Yusuke Nagae
  • Patent number: 11795133
    Abstract: The present invention provides a process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate (5): wherein Ac represents an acetyl group, the process comprising steps of: subjecting a 2-methyl-2,6-heptadiene compound (1) having a leaving group X at position 1: wherein X represents an acyloxy group having 1 to 10 carbon atoms including the carbon atom of the carbonyl group, an alkanesulfonyloxy group having 1 to 10 carbon atoms, an arenesulfonyloxy group having 6 to 20 carbon atoms, or a halogen atom, to a nucleophilic substitution reaction with a 3-methylpentyl nucleophilic reagent (2) having a protected hydroxyl group at position 5: wherein M represents Li, MgZ1, ZnZ1, Cu, CuZ1, or CuLiZ1, wherein Z1 represents a halogen atom or a CH2CH2CH(CH3)CH2CH2OR group, and R represents a protecting group for a hydroxyl group, to form a 6-isopropenyl-3-methyl-9-decene compound (3) having a protected hydroxyl group at position 1: wherein R is as defined above; subjecting the 6-isopropenyl-3-methyl-9-decene compound (3
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: October 24, 2023
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akihiro Baba, Takeshi Kinsho
  • Publication number: 20230337078
    Abstract: Provided is a base station device including: a scheme selection unit that selects a scheme of HO from a first scheme not using an NRT and a second scheme using the NRT; and an HO control unit that, when the first scheme is selected, causes the UE to measure system information of an HO candidate cell, receives an ECGI, and controls HO by using cell information of the HO candidate cell received from a core network by using the ECGI, and, when the second scheme is selected and the PCI of the HO candidate cell is included in the NRT, controls the HO by using cell information corresponding to the PCI, and when the PCI is not included, causes the UE to measure the system information of the HO candidate cell, receives the ECGI, controls the HO by using the cell information of the HO candidate cell.
    Type: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Inventors: Akihiro BABA, Mizuki FUNAKOSHI, Yonghong TAN
  • Publication number: 20230148099
    Abstract: A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8-nonenyl compound, of the following general formula (1): wherein M1 represents Li, MgZ1, ZnZ1, Cu, CuZ1, or CuLiZ1, wherein Z1 represents a halogen atom or a 5-isopropenyl-2-methyl-8-nonenyl group, from a 5-isopropenyl-2-methyl-8-nonenyl halide compound of the following general formula (4): wherein X1 represents a halogen atom; subjecting the nucleophilic reagent (1), 5-isopropenyl-2-methyl-8-nonenyl compound, to an addition reaction with at least one electrophilic reagent selected from the group consisting of formaldehyde, paraformaldehyde, and 1,3,5-trioxane, followed by a hydrolysis reaction to form 6-isopropenyl-3-methyl-9-decenol of the following formula (2); and acetylating 6-isopropenyl-3-methyl-9-decenol (2) to form 6-isopropenyl-3-methyl-9-decenyl acetate (3).
    Type: Application
    Filed: January 13, 2023
    Publication date: May 11, 2023
    Inventors: Akihiro Baba, Takeshi Kinsho, Yusuke Nagae
  • Patent number: 11591282
    Abstract: A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8-nonenyl compound, of the following general formula (1): wherein M1 represents Li, MgZ1, ZnZ1, Cu, CuZ1, or CuLiZ1, wherein Z1 represents a halogen atom or a 5-isopropenyl-2-methyl-8-nonenyl group, from a 5-isopropenyl-2-methyl-8-nonenyl halide compound of the following general formula (4): wherein X1 represents a halogen atom; subjecting the nucleophilic reagent (1), 5-isopropenyl-2-methyl-8-nonenyl compound, to an addition reaction with at least one electrophilic reagent selected from the group consisting of formaldehyde, paraformaldehyde, and 1,3,5-trioxane, followed by a hydrolysis reaction to form 6-isopropenyl-3-methyl-9-decenol of the following formula (2); and acetylating 6-isopropenyl-3-methyl-9-decenol (2) to form 6-isopropenyl-3-methyl-9-decenyl acetate (3).
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: February 28, 2023
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akihiro Baba, Takeshi Kinsho, Yusuke Nagae
  • Publication number: 20220306565
    Abstract: There are provided methods of efficiently producing compounds that are, for example, sex pheromones of San Jose Scale. For example, there is provided a method for producing a 7-methyl-3-methylene-7-octenyl carboxylate compound (1), the method including the step of coupling a nucleophilic reagent expressed as a 3-methyl-3-butenyl M of General Formula (8): wherein M is a cationic moiety, with an acetal compound of General Formula (9): wherein R1 and R2, which may be the same or different, are each an alkyl group having 1 to 6 carbon atoms, or are bonded to each other to form a divalent alkylene group having 2 to 12 carbon atoms, and X is a leaving group, to obtain the 7-methyl-3-methylene-7-octenal acetal compound.
    Type: Application
    Filed: June 6, 2022
    Publication date: September 29, 2022
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Patent number: 11394456
    Abstract: An arrangement determination apparatus is provided comprising a target region identifying unit configured to identify a target region for providing service by a plurality of flying objects, the plurality of flying objects forming a wireless communication area on a ground by emitting a beam toward the ground, a flying object number retrieving unit configured to retrieve a number of the plurality of flying objects, a point retrieving unit configured to retrieve a point for each of a plurality of meshes obtained by dividing the target region, and an arrangement determination unit configured to determine an arrangement of the plurality of flying objects over the target region based on the number of flying objects and the point for each of the plurality of meshes.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: July 19, 2022
    Assignee: HAPSMobile Inc.
    Inventors: Akihiro Baba, Yuki Ota
  • Patent number: 11384041
    Abstract: The present invention provides a process for preparing an alkoxymethyl alkynyl ether compound having a terminal triple bond of the following formula (4): H—C?C(CH2)aOCH2OCH2R (4), wherein R represents a hydrogen atom, an n-alkyl group having 1 to 9 carbon atoms, or a phenyl group, and “a” represents an integer of 1 to 10, the method comprising subjecting an alkynol compound having a terminal triple bond of the following formula (1): H—C?C(CH2)aOH (1), wherein “a” is as defined above, to an alkoxymethylation with a halomethyl alkyl ether compound of the following formula (3): RCH2OCH2X (3), wherein X represents a halogen atom, and R is as defined above, in the presence of a dialkylaniline compound of the following formula (2): [CH3(CH2)b][CH3(CH2)c]NC6H5 (2), wherein b and c represent, independently of each other, an integer of 0 to 9, to form the alkoxymethyl alkynyl ether compound (4) having a terminal triple bond.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: July 12, 2022
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuki Miyake, Miyoshi Yamashita, Takeshi Kinsho, Akihiro Baba
  • Patent number: 11384046
    Abstract: There are provided methods of efficiently producing compounds that are, for example, sex pheromones of San Jose Scale. For example, there is provided a method for producing a 7-methyl-3-methylene-7-octenyl carboxylate compound (4), the method including the steps of: hydrolyzing a 7-methyl-3-methylene-7-octenal acetal compound (1) to obtain 7-methyl-3-methylene-7-octenal (2); reducing the 7-methyl-3-methylene-7-octenal (2) to obtain 7-methyl-3-methylene-7-octenol (3); and esterifying the 7-methyl-3-methylene-7-octenol (3) to obtain a 7-methyl-3-methylene-7-octenyl carboxylate compound (4).
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 12, 2022
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takeshi Kinsho, Akihiro Baba, Yusuke Nagae, Tomohiro Watanabe
  • Publication number: 20220185763
    Abstract: The present invention relates to a process for preparing a 3-isopropenyl-6-heptenal compound of the following formula (2): wherein R1 represents a hydrogen atom or a methyl group, the process comprising: subjecting a 3-isopropenyl-6-heptenoate ester compound of the following formula (1): wherein R1 is as defined above, and R2 represents a monovalent hydrocarbon group having 1 to 10 carbon atoms, to a reduction reaction with a reducing agent to form the 3-isopropenyl-6-heptenal compound (2).
    Type: Application
    Filed: December 7, 2021
    Publication date: June 16, 2022
    Inventors: Akihiro Baba, Takeshi Kinsho, Naoki Ishibashi, Yusuke Nagae