Patents by Inventor Keiichi Yoshikawa
Keiichi Yoshikawa 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: 20230321462Abstract: The improvement of olfactory sensitivity. A method for improving olfactory sensitivity, comprising reducing body odor.Type: ApplicationFiled: December 14, 2020Publication date: October 12, 2023Applicant: Kao CorporationInventors: Dan TAKASE, Keiichi YOSHIKAWA, Masatoshi OHASHI
-
Patent number: 10738101Abstract: A method for searching for a substance suppressing a target odor through cross-adaptation is provided. A method for selecting a substance inducing cross-adaptation of a target odor includes: searching olfactory receptor polypeptides to identify an olfactory receptor polypeptide responding to a causative substance of the target odor; adding a test substance, which is different from the causative substance of the target odor, to the identified olfactory receptor polypeptide to measure response thereof; and selecting the test substance which activates the response of the olfactory receptor polypeptide as the substance inducing the cross-adaptation of the target odor.Type: GrantFiled: May 27, 2016Date of Patent: August 11, 2020Assignee: Kao CorporationInventors: Keiichi Yoshikawa, Naoko Saito
-
Patent number: 10619027Abstract: Provided an agent for suppressing an odor of a polysulfide compound. This agent for suppressing an odor of a polysulfide compound comprises, as an active ingredient, at least one selected from the group consisting, butyl 2-methylbutanoate, ?-terpinene, dipentene, cis-4-heptenal, 1,4-cineol, trimethylhexyl aldehyde, and (+)-limonene oxide, wherein the polysulfide compound is represented by the following formula (I): R1—[S]n—R2 (I) (in the formula, R1 and R2 are the same or different, and each denote a linear-chain or branched-chain alkyl or alkenyl group having 1 to 6 carbon atoms, and n denotes an integer of 2 to 5).Type: GrantFiled: June 16, 2016Date of Patent: April 14, 2020Assignee: KAO CORPORATIONInventors: Keiichi Yoshikawa, Naoko Saito
-
Patent number: 10585087Abstract: The present invention identifies substances which suppress odors of sulfide compounds. Provided is a method for evaluating and/or selecting an agent for suppressing odors of sulfide compounds, the method comprising: adding a test substance and a sulfide compound to at least one olfactory receptor polypeptide selected from the group consisting of OR4S2 and polypeptides having an amino acid sequence identity of at least 80% to OR4S2; and measuring the response of the olfactory receptor polypeptide to the sulfide compound.Type: GrantFiled: June 16, 2016Date of Patent: March 10, 2020Assignee: KAO CORPORATIONInventors: Keiichi Yoshikawa, Naoko Saito
-
Publication number: 20190367963Abstract: Provided is a method for searching a substance which enhances an odor. The method is a method for selecting a substance which causes enhancement or suppression of an odor and includes measuring a response of a broadly tuned olfactory receptor in the presence of a test substance and selecting a test substance which enhances or decreases the response of the olfactory receptor as a substance which causes enhancement or suppression of an odor.Type: ApplicationFiled: January 19, 2018Publication date: December 5, 2019Applicant: Kao CorporationInventors: Keiichi YOSHIKAWA, Hiroko TAKATOKU
-
Patent number: 10364216Abstract: Provided are a novel compound useful for adjusting sweetness or saltiness or inhibiting ENaC, and use thereof. An octenyl sulfate ester of the following Formula (1) or a salt thereof, wherein the wavy line represents any one of cis- or trans-configuration.Type: GrantFiled: August 1, 2014Date of Patent: July 30, 2019Assignee: Kao CorporationInventors: Masanori Matsuura, Tomohiro Nakagawa, Keiichi Yoshikawa
-
Publication number: 20180186968Abstract: Provided an agent for suppressing an odor of a polysulfide compound. This agent for suppressing an odor of a polysulfide compound comprises, as an active ingredient, at least one selected from the group consisting, butyl 2-methylbutanoate, ?-terpinene, dipentene, cis-4-heptenal, 1,4-cineol, trimethlhexyl aldehyde, and (+)-limoene oxide, wherein the polysulfide compound is represented by the following formula (I): R1-[S]n-R2 (I) (in the formula, R1 and R2 are the same or different, and each denote a linear-chain or branched-chain alkyl or alkenyl group having 1 to 6 carbon atoms, and n denotes an integer of 2 to 5).Type: ApplicationFiled: June 16, 2016Publication date: July 5, 2018Applicant: KAO CORPORATIONInventors: Keiichi YOSHIKAWA, Naoko SAITO
-
Publication number: 20180180600Abstract: The present invention identifies substances which suppress odors of sulfide compounds. Provided is a method for evaluating and/or selecting an agent for suppressing odors of sulfide compounds, the method comprising: adding a test substance and a sulfide compound to at least one olfactory receptor polypeptide selected from the group consisting of OR4S2 and polypeptides having an amino acid sequence identity of at least 80% to OR4S2; and measuring the response of the olfactory receptor polypeptide to the sulfide compound.Type: ApplicationFiled: June 16, 2016Publication date: June 28, 2018Applicant: KAO CORPORATIONInventors: Keiichi YOSHIKAWA, Naoko SAITO
-
Publication number: 20180127482Abstract: A method for searching for a substance suppressing a target odor through cross-adaptation is provided. A method for selecting a substance inducing cross-adaptation of a target odor includes: searching olfactory receptor polypeptides to identify an olfactory receptor polypeptide responding to a causative substance of the target odor; adding a test substance, which is different from the causative substance of the target odor, to the identified olfactory receptor polypeptide to measure response thereof; and selecting the test substance which activates the response of the olfactory receptor polypeptide as the substance inducing the cross-adaptation of the target odor.Type: ApplicationFiled: May 27, 2016Publication date: May 10, 2018Applicant: Kao CorporationInventors: Keiichi Yoshikawa, Naoko SAITO
-
Publication number: 20160198746Abstract: Provided are a novel compound useful for adjusting sweetness or saltiness or inhibiting ENaC, and use thereof. An octenyl sulfate ester of the following Formula (1) or a salt thereof, wherein the wavy line represents any one of cis- or trans-configuration.Type: ApplicationFiled: August 1, 2014Publication date: July 14, 2016Applicant: Kao CorporationInventors: Masanori MATSUURA, Tomohiro NAKAGAWA, Keiichi YOSHIKAWA
-
Patent number: 8851942Abstract: A thrust generating apparatus which is positioned under water and configured to generate a thrust by ejecting water includes a duct-shaped stator provided with a plurality of armature coils, and a plurality of ring-shaped rotors which are arranged radially inward of the stator and provided with permanent magnets respectively corresponding to the plurality of armature coils, wherein the plurality of rotors are arranged in series in a rotational axis direction thereof and each of the rotors has a propeller vane protruding radially inward. A thrust generating apparatus is capable of outputting a high driving power without increasing a propeller diameter.Type: GrantFiled: December 16, 2008Date of Patent: October 7, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Keiichi Yoshikawa, Hiromitsu Kiyose, Tetsuro Ikebuchi
-
Publication number: 20100279559Abstract: A thrust generating apparatus which is positioned under water and configured to generate a thrust by ejecting water includes a duct-shaped stator provided with a plurality of armature coils, and a plurality of ring-shaped rotors which are arranged radially inward of the stator and provided with permanent magnets respectively corresponding to the plurality of armature coils, wherein the plurality of rotors are arranged in series in a rotational axis direction thereof and each of the rotors has a propeller vane protruding radially inward. A thrust generating apparatus is capable of outputting a high driving power without increasing a propeller diameter.Type: ApplicationFiled: December 16, 2008Publication date: November 4, 2010Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Keiichi Yoshikawa, Hiromitsu Kiyose, Tetsuro Ikebuchi