Patents by Inventor Yoshio Aoki
Yoshio Aoki 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).
-
Patent number: 12024934Abstract: An opening-closing member controller that solves the problem includes a motor, a speed detection unit, an entrapment determination unit, and a control unit. The motor opens and closes an opening-closing member of a vehicle. The speed detection unit outputs a speed signal corresponding to a rotation speed of the motor. The entrapment determination unit determines whether entrapment of foreign material by the opening-closing member has occurred based on the speed signal. The control unit reverses or stops the motor when the entrapment determination unit determines that entrapment has occurred. The entrapment determination unit performs the determination at shorter time intervals when a remote operation switch that is separated from the vehicle is operated to close the opening-closing member than when a vehicle operation switch that is arranged in the vehicle is operated to close the opening-closing member.Type: GrantFiled: March 27, 2019Date of Patent: July 2, 2024Assignee: DENSO CORPORATIONInventors: Yoshio Aoki, Yutaka Naito, Hiromichi Ono
-
Publication number: 20230112953Abstract: A nematic liquid crystal composition having a high ?n and a high ?? in a liquid crystal material that enables greater phase control over electromagnetic waves in the microwave or millimeter wave range, and a liquid crystal element, a sensor, a liquid crystal lens, an optical communication device, and an antenna including the nematic liquid crystal composition. Specifically, a liquid crystal composition containing one or two or more compounds represented by general formula (i) in the specification and one or two or more compounds represented by general formula (ii) in the specification, and having a high ?n and a high ??.Type: ApplicationFiled: December 10, 2020Publication date: April 13, 2023Applicant: DIC CorporationInventors: Mika YAMAMOTO, Yoshio AOKI, Hidetoshi NAKATA, Kazunori MARUYAMA, Shinichi HIRATA, Haruki OHISHI, Masahiro HORIGUCHI
-
Publication number: 20220195290Abstract: Provided are light-emitting particles having high stability while having perovskite-type semiconductor nanocrystals having excellent light-emitting properties, a method for producing the same, and a light-emitting particle dispersion, an ink composition, and a light-emitting element containing such light-emitting particles. The method for producing light-emitting particles of the present invention includes a step of preparing parent particles 91 each having hollow particles 912 each having an inner space 912a and pores 912b communicating with the inner space 912a, and perovskite-type semiconductor nanocrystals 911 contained in the inner space 912a and having light-emitting properties, and a step of coating the surface of each parent particle 91 with a hydrophobic polymer to form a polymer layer 92.Type: ApplicationFiled: May 15, 2020Publication date: June 23, 2022Applicant: DIC CorporationInventors: Yoshio Aoki, Yasuo Umezu, Koichi Endo, Shinichi Hirata, Takuo Hayashi, Masahiro Horiguchi, Misao Horigome, Jianjun Yuan
-
Publication number: 20220145108Abstract: Provided are light-emitting particles having high stability while having perovskite-type semiconductor nanocrystals having excellent light-emitting properties, a method for producing the same, and a light-emitting particle dispersion, an ink composition, and a light-emitting element containing such light-emitting particles. The method for producing light-emitting particles of the present invention includes a step of preparing parent particles 91 composed of perovskite-type semiconductor nanocrystals 911 having light-emitting properties and a surface layer 912 which is composed of ligands coordinated on the surface of the semiconductor nanocrystal 911 and in which the ligand molecules form a siloxane bond with each other, and a step of forming a polymer layer 93 by coating the surface of the parent particle 91 with a hydrophobic polymer.Type: ApplicationFiled: May 13, 2020Publication date: May 12, 2022Applicant: DIC CorporationInventors: Koichi Endo, Yasuo Umezu, Yoshio Aoki, Shinichi Hirata, Takuo Hayashi, Masahiro Horiguchi, Misao Horigome, Jianjun Yuan
-
Patent number: 11316552Abstract: A high-frequency switch includes an input interface configured to receive a high-frequency signal; an output interface configured to output the high-frequency signal to outside; and a reactance switch inserted between the input interface and the output interface. The reactance switch includes a plurality of reactance circuits connected in a cascade arrangement between the input interface and the output interface. Each of the plurality of reactance circuits is configured to form a common passband for the high-frequency signal based on a reactance of a respective predetermined values, and at least one of the reactance circuits is a variable reactance circuit having a reactance which changes in response to a control signal input from the outside so that the passband of the variable reactance circuit changes.Type: GrantFiled: December 11, 2018Date of Patent: April 26, 2022Assignee: YOKOWO CO., LTD.Inventors: Yoshio Aoki, Akihiro Nakamura
-
Publication number: 20210366997Abstract: It is an object of the present invention to provide an image display apparatus capable of inhibiting or preventing the deterioration of a light conversion layer while high luminous efficiency and high color reproducibility are achieved. The present invention provides a light-emitting device including a pair of electrodes, an electroluminescent layer disposed between a first electrode and a second electrode, a light conversion layer including multiple pixels and converting light that is emitted from the electroluminescent layer and that has a blue emission spectrum into light having a different wavelength. The light conversion layer includes pixels of three primary colors of red (R), green (G), and blue (B) and contains a light-emitting nanocrystal having an emission spectrum in any of red (R), green (G), and blue (B) when light from the electroluminescent layer is incident on at least one of the three primary colors.Type: ApplicationFiled: May 26, 2021Publication date: November 25, 2021Applicant: DIC CorporationInventors: Yasuo Umezu, Hidehiko Yamaguchi, Yoshio Aoki, Shinji Ogawa
-
Patent number: 11049911Abstract: It is an object of the present invention to provide an image display apparatus capable of inhibiting or preventing the deterioration of a light conversion layer while high luminous efficiency and high color reproducibility are achieved. The present invention provides a light-emitting device including a pair of electrodes, an electroluminescent layer disposed between a first electrode and a second electrode, a light conversion layer including multiple pixels and converting light that is emitted from the electroluminescent layer and that has a blue emission spectrum into light having a different wavelength. The light conversion layer includes pixels of three primary colors of red (R), green (G), and blue (B) and contains a light-emitting nanocrystal having an emission spectrum in any of red (R), green (G), and blue (B) when light from the electroluminescent layer is incident on at least one of the three primary colors.Type: GrantFiled: December 21, 2017Date of Patent: June 29, 2021Assignee: DIC CORPORATIONInventors: Yasuo Umezu, Hidehiko Yamaguchi, Yoshio Aoki, Shinji Ogawa
-
Patent number: 11047433Abstract: This clutch includes an annular clutch housing, a rotationally driven drive-side rotating body, a driven-side rotating body, a rolling body, and a support member. The clutch is configured such that, when the drive-side rotating body starts to rotate when driven, the drive-side rotating body comes into contact with the support member in a rotational direction and presses the rolling body in the rotational direction through the support member, thereby releasing the rolling body from gripping effected by the clutch housing and the driven-side rotating body. The support member includes a load generation section for generating a load which makes it difficult for the support member to rotate about the rotation axis of the drive-side rotating body when at least the drive-side rotating body starts to rotate when driven.Type: GrantFiled: March 9, 2018Date of Patent: June 29, 2021Assignee: DENSO CORPORATIONInventors: Ryosuke Oguri, Shusuke Kijima, Tetsuya Honda, Yoshio Aoki, Hiroyuki Okada, Kenta Suzuki, Nakatsune Shirai, Daisuke Sawamoto, Tomoaki Ozaki
-
Publication number: 20210139730Abstract: A dispersion contains, as essential ingredients, light-emitting nanocrystals, a polymeric dispersant having an amine value of 5 mg/KOH g or more, and a stimulation-responsive curable material that cures in response to an external stimulus.Type: ApplicationFiled: December 24, 2020Publication date: May 13, 2021Applicant: DIC CORPORATIONInventors: Takeshi Isonaka, Yasuo Umezu, Hidehiko Yamaguchi, Yoshio Aoki, Hirotomo Sasaki, Sunao Yoshihara, Takayuki Miki, Aya Ishizuka, Takeo Kizaki
-
Patent number: 10947403Abstract: A dispersion contains, as essential ingredients, light-emitting nanocrystals, a polymeric dispersant having an amine value of 5 mg/KOH g or more, and a stimulation-responsive curable material that cures in response to an external stimulus.Type: GrantFiled: December 21, 2017Date of Patent: March 16, 2021Assignee: DIC CORPORATIONInventors: Takeshi Isonaka, Yasuo Umezu, Hidehiko Yamaguchi, Yoshio Aoki, Hirotomo Sasaki, Sunao Yoshihara, Takayuki Miki, Aya Ishizuka, Takeo Kizaki
-
Publication number: 20210058107Abstract: A high-frequency switch includes an input interface configured to receive a high-frequency signal; an output interface configured to output the high-frequency signal to outside; and a reactance switch inserted between the input interface and the output interface. The reactance switch includes a plurality of reactance circuits connected in a cascade arrangement between the input interface and the output interface. Each of the plurality of reactance circuits is configured to form a common passband for the high-frequency signal based on a reactance of a respective predetermined values, and at least one of the reactance circuits is a variable reactance circuit having a reactance which changes in response to a control signal input from the outside so that the passband of the variable reactance circuit changes.Type: ApplicationFiled: December 11, 2018Publication date: February 25, 2021Applicant: YOKOWO CO., LTD.Inventors: Yoshio AOKI, Akihiro NAKAMURA
-
Publication number: 20200408021Abstract: An opening-closing member controller that solves the problem includes a motor, a speed detection unit, an entrapment determination unit, and a control unit. The motor opens and closes an opening-closing member of a vehicle. The speed detection unit outputs a speed signal corresponding to a rotation speed of the motor. The entrapment determination unit determines whether entrapment of foreign material by the opening-closing member has occurred based on the speed signal. The control unit reverses or stops the motor when the entrapment determination unit determines that entrapment has occurred. The entrapment determination unit performs the determination at shorter time intervals when a remote operation switch that is separated from the vehicle is operated to close the opening-closing member than when a vehicle operation switch that is arranged in the vehicle is operated to close the opening-closing member.Type: ApplicationFiled: March 27, 2019Publication date: December 31, 2020Applicant: DENSO CORPORATIONInventors: Yoshio AOKI, Yutaka NAITO, Hiromichi ONO
-
Patent number: 10814702Abstract: An opening/closing drive device drives an upwardly and downwardly movable opening/closing member. The opening/closing drive device includes a motor, a position detection sensor configured to detect a position of the opening/closing member, and a controller. The controller is configured to drive the motor in order to upwardly move the opening/closing member when determining in a state in which the motor is not driven that the opening/closing member has moved downward to a position corresponding to a predetermined threshold or lower based on a signal from the position detection sensor.Type: GrantFiled: February 2, 2017Date of Patent: October 27, 2020Assignee: DENSO CORPORATIONInventors: Yoshio Aoki, Tetsuya Honda
-
Publication number: 20190393273Abstract: It is an object of the present invention to provide an image display apparatus capable of inhibiting or preventing the deterioration of a light conversion layer while high luminous efficiency and high color reproducibility are achieved. The present invention provides a light-emitting device including a pair of electrodes, an electroluminescent layer disposed between a first electrode and a second electrode, a light conversion layer including multiple pixels and converting light that is emitted from the electroluminescent layer and that has a blue emission spectrum into light having a different wavelength. The light conversion layer includes pixels of three primary colors of red (R), green (G), and blue (B) and contains a light-emitting nanocrystal having an emission spectrum in any of red (R), green (G), and blue (B) when light from the electroluminescent layer is incident on at least one of the three primary colors.Type: ApplicationFiled: December 21, 2017Publication date: December 26, 2019Applicant: DIC CorporationInventors: Yasuo Umezu, Hidehiko Yamaguchi, Yoshio Aoki, Shinji Ogawa
-
Publication number: 20190390076Abstract: A dispersion contains, as essential ingredients, light-emitting nanocrystals, a polymeric dispersant having an amine value of 5 mg/KOH g or more, and a stimulation-responsive curable material that cures in response to an external stimulus.Type: ApplicationFiled: December 21, 2017Publication date: December 26, 2019Applicant: DIC CorporationInventors: Takeshi Isonaka, Yasuo Umezu, Hidehiko Yamaguchi, Yoshio Aoki, Hirotomo Sasaki, Sunao Yoshihara, Takayuki Miki, Aya Ishizuka, Takeo Kizaki
-
Publication number: 20190382655Abstract: “Object” A problem to be solved by the present invention is to provide a luminescent nanocrystal complex that tends to disperse orderly in a polymer matrix and is superior in dispersibility in structurally mesogenic crosslinkable polymer matrices. “Solution” The present invention is a luminescent nanocrystal complex that contains luminescent nanocrystals and a surface-modifying compound that modifies the surface of the luminescent nanocrystals. The surface-modifying compound has a mesogenic backbone and a group that binds to the surface of the luminescent nanocrystals.Type: ApplicationFiled: December 7, 2017Publication date: December 19, 2019Applicant: DIC CorporationInventors: Yasuhiro Kuwana, Koichi Endou, Kazuaki Hatsusaka, Yoshio Aoki, Hidehiko Yamaguchi
-
Publication number: 20190331175Abstract: This clutch includes an annular clutch housing, a rotationally driven drive-side rotating body, a driven-side rotating body, a rolling body, and a support member. The clutch is configured such that, when the drive-side rotating body starts to rotate when driven, the drive-side rotating body comes into contact with the support member in a rotational direction and presses the rolling body in the rotational direction through the support member, thereby releasing the rolling body from gripping effected by the clutch housing and the driven-side rotating body. The support member includes a load generation section for generating a load which makes it difficult for the support member to rotate about the rotation axis of the drive-side rotating body when at least the drive-side rotating body starts to rotate when driven.Type: ApplicationFiled: March 9, 2018Publication date: October 31, 2019Applicant: DENSO CORPORATIONInventors: Ryosuke OGURI, Shusuke KIJIMA, Tetsuya HONDA, Yoshio AOKI, Hiroyuki OKADA, Kenta SUZUKI, Nakatsune SHIRAI, Daisuke SAWAMOTO, Tomoaki OZAKI
-
Patent number: 10428032Abstract: The present invention provides a compound represented by the general formula (I), and a polymerizable composition containing the compound. When the polymerizable composition containing the compound represented by the formula (I) is used to form a filmy product, the resulting filmy product exhibits less change over time in phase difference and reverse wavelength dispersion and when the filmy polymer is irradiated with UV light, peeling from a substrate is unlikely to be caused. Further, the invention provides a polymer obtained through polymerization of the polymerizable composition and an optically anisotropic body obtained using the polymer.Type: GrantFiled: August 25, 2016Date of Patent: October 1, 2019Assignee: DIC CORPORATIONInventors: Masahiro Horiguchi, Junichi Mamiya, Yoshio Aoki
-
Patent number: 10351643Abstract: An object of the invention is to provide polymerizable compounds having excellent optical characteristics and suited as materials for optically anisotropic articles, compositions containing the polymerizable compounds, polymers obtained by polymerizing the polymerizable compounds, optically anisotropic articles formed of the polymers, and liquid crystal display devices including the optically anisotropic articles.Type: GrantFiled: November 27, 2014Date of Patent: July 16, 2019Assignee: DIC CORPORATIONInventors: Hiroshi Hasebe, Yoshio Aoki, Kunihiko Kotani, Akihiro Koiso, Hidetoshi Nakata
-
Patent number: 10336939Abstract: Provided are a compound represented by general formula (I), a liquid crystal composition that uses the compound, and a liquid crystal display device that uses the liquid crystal composition. Adding the compound represented by general formula (I) to a liquid crystal composition can prevent degradation of the liquid crystal composition by light, heat, etc. The compound represented by general formula (I) dissolves well in the liquid crystal composition. Thus, when the compound represented by general formula (I) is used, a liquid crystal composition having both low viscosity (?) and high reliability can be prepared, and a high-speed response liquid crystal display device can be provided.Type: GrantFiled: June 23, 2016Date of Patent: July 2, 2019Assignee: DIC CORPORATIONInventors: Masayuki Iwakubo, Sayaka Nose, Manabu Takachi, Yoshio Aoki