Patents by Inventor Yukihiro Saito

Yukihiro Saito 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: 11916547
    Abstract: A semiconductor relay device includes a conversion circuit configured to receive an input signal from outside and pass a first current to a first node based on the input signal. A zener diode has an anode coupled to a second node and a cathode coupled to the first node. A resistor is coupled between the second node and a third node. A number n of diodes are serially coupled. A thyristor has an anode coupled to the first node, a cathode coupled to the second node, and a control terminal coupled to the third node. A transistor has a gate coupled to the first node. An anode of a diode at a first end of the n diodes is coupled to the first node, and a cathode of a diode at a second end of the n diodes is coupled to a third node.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: February 27, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Naoya Takai, Yukihiro Takifuji, Keita Saito, Kazuki Tanaka
  • Patent number: 11686436
    Abstract: This application relates to the field of lighting, and discloses an LED filament including: at least one LED section, each LED section including at least two LED chips, adjacent LED chips being electrically connected to each other; electrodes, electrically connected to the LED section; and a light conversion layer, wrapping the LED section and parts of the electrodes, and including a top layer and a carrying layer, the carrying layer including a base layer and a transparent layer, the base layer including an upper surface and a lower surface opposite to each other, the upper surface of the base layer being in contact with a part of the top layer, and a part of the lower surface of the base layer being in contact with the transparent layer. This application has the characteristics of uniform light emission and good heat dissipation effect.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: June 27, 2023
    Inventors: Aiming Xiong, Lin Zhou, Mingbin Wang, Chenkun Chen, Chihshan Yu, Tao Jiang, Yuexing Li, Hayato Unagiike, Yukihiro Saito, Zhichao Zhang
  • Patent number: 11690148
    Abstract: An LED light bulb comprising a lamp housing, a bulb base, connected to the lamp housing, a stem connected to the bulb base and located in the lamp housing; an LED filament, disposed in the lamp housing, where points of the LED filament in an xyz coordinates are defined as x, y, and z, an x-y plane of the xyz coordinates is perpendicular to the height direction of the LED light bulb, an z-axis of xyz coordinates is parallel with the stem, and the projection of the LED filament on the x-y plane, y-z plane and x-z plane respectively has a length L1, L2 and L3, and the length L1, the length L2, and the length L3 are substantially in a ratio of 1:(0.5 to 1):(0.6 to 0.9).
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: June 27, 2023
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD.
    Inventors: Tao Jiang, Wei-Hong Xu, Yukihiro Saito, Hayato Unagiike, Ai-Ming Xiong, Jun-Feng Xu, Yi-Ching Chen
  • Patent number: 11543083
    Abstract: An LED filament and an LED light bulb applying the same are provided. The LED filament includes a at least one LED section, wherein the at least one LED section comprises at least two LED chips electrically connected to each other through a first wire, and at least two conductive electrodes, wherein each of the at least two conductive electrodes is electrically connected to corresponding one of the at least one LED section; and a light conversion layer, covering the at least one LED section and a portion of each of the at least two conductive electrodes, a portion of the first wire is exposed outside the light conversion layer.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: January 3, 2023
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Zhichao Zhang, Yukihiro Saito, Hayato Unagiike
  • Patent number: 11421827
    Abstract: An LED filament and an LED light bulb applying the same are provided. The LED filament includes a conductive section including a conductor; two or more LED sections connected to each other by the conductive section, and each of the LED sections includes two or more LED chips electrically connected to each other through a wire; two electrodes, electrically connected to the LED section; and a light conversion layer with a top layer and a base layer, covering the LED sections, the conductive section and the two electrodes, and a part of each of the two electrodes is exposed respectively. The LED filament is supplied with electric power no more than 8 W, when the LED filament is lit, at least 4 lm of white light is emitted per millimeter of filament length.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: August 23, 2022
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Zhichao Zhang, Yukihiro Saito, Hayato Unagiike
  • Publication number: 20220088141
    Abstract: Described herein is the discovery that HGFs activate the growth and migration of lymphatic endothelial cells and thereby promote lymphangiogenesis. The present invention is based on this finding, and provides lymphangiogenesis-promoting agents comprising as active ingredients HGFs, or proteins or compounds functionally equivalent thereto. Based on the finding described above, the present invention also provides methods for promoting lymphangiogenesis which comprise the step of locally administering HGFs or proteins functionally equivalent thereto to affected areas in patients with lymphedema.
    Type: Application
    Filed: April 26, 2021
    Publication date: March 24, 2022
    Applicant: AnGes, Inc.
    Inventors: Ryuichi Morishita, Yasufumi Kaneda, Hironori Nakagami, Yukihiro Saito
  • Publication number: 20220086975
    Abstract: An LED light bulb includes a lamp housing, an LED filament in the lamp housing and a power module. The LED filament includes a first and a second LED sections, a conductive section, a first and a second conductive electrodes and a light conversion layer. Each LED section includes LED chips connected in serial to from a LED string. The conductive section connects one end of the LED string of the first LED section with one end of the LED string of the second sections. The polarities of the ends of the LED strings are the same. The other ends of the LED strings are respectively connected to the first and the second conductive electrodes. The light conversion layer is coated on at least two sides of the LED chips. The power module's terminals are connected to the conductive section and the conductive electrodes.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: TAO JIANG, Wei-Hong Xu, YUKIHIRO SAITO, HAYATO UNAGIIKE, Ai-Ming Xiong, Jun-Feng Xu, Yi-Ching Chen
  • Publication number: 20220086974
    Abstract: An LED light bulb comprising a lamp housing, a bulb base, connected to the lamp housing, a stem connected to the bulb base and located in the lamp housing; an LED filament, disposed in the lamp housing, where points of the LED filament in an xyz coordinates are defined as x, y, and z, an x-y plane of the xyz coordinates is perpendicular to the height direction of the LED light bulb, an z-axis of xyz coordinates is parallel with the stem, and the projection of the LED filament on the x-y plane, y-z plane and x-z plane respectively has a length L1, L2 and L3, and the length L1, the length L2, and the length L3 are substantially in a ratio of 1:(0.5 to 1):(0.6 to 0.9).
    Type: Application
    Filed: November 15, 2021
    Publication date: March 17, 2022
    Inventors: TAO JIANG, WEI-HONG XU, YUKIHIRO SAITO, HAYATO UNAGIIKE, AI-MING XIONG, JUN-FENG XU, YI-CHING CHEN
  • Publication number: 20220078892
    Abstract: An LED light bulb comprising a lamp housing, a bulb base, connected to the lamp housing, a spectral distribution of the light bulb is generally between a wavelength range of about 400 nm to 800 nm, and three peak wavelengths P1, P2, and P3 appear in wavelength ranges corresponding to light emitted by the light bulb, wherein a wavelength of the peak P1 is between 430 nm and 480 nm, a wavelength of the peak P2 is between 480 nm and 530 nm, a wavelength of the peak P3 is between 630 nm and 680 nm.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventors: TAO JIANG, WEI-HONG XU, YUKIHIRO SAITO, HAYATO UNAGIIKE, AI-MING XIONG, JUN-FENG XU, YI-CHING CHEN
  • Patent number: 11259372
    Abstract: An high-efficiency light bulb, comprising: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material, which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing; and a single filament, disposed in the light housing, further comprising a plurality of supporting arms, connected with and supporting the LED filament, wherein the stem comprises a stand extending to the center of the lamp housing, the stand supports the supporting arms.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: February 22, 2022
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Wei-Hong Xu, Yukihiro Saito, Hayato Unagiike, Al-Ming Xiong, Jun-Feng Xu, Yi-Ching Chen
  • Publication number: 20220046769
    Abstract: An LED filament comprising a plurality of LED filament units, each of the plurality of LED filament units includes a LED chip with an upper surface and a lower surface opposite to the upper surface of the LED chip, and a light conversion layer comprising a top layer and a base layer, and the base layer comprises an upper surface and a lower surface opposite to the upper surface of the base layer, where the top layer with an upper surface and a lower surface opposite to the upper surface of the top layer is disposed on at least two sides of each of the LED chips, the lower surface of each of the LED chips is close to the upper surface of the base layer, and the upper surface of the top layer is away from each of the LED chips.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Inventors: TAO JIANG, WEI-HONG XU, YUKIHIRO SAITO, HAYATO UNAGIIKE, AI-MING XIONG, JUN-FENG XU, YI-CHING CHEN
  • Publication number: 20220019224
    Abstract: A mobile body controller according to the present disclosure includes circuitry configured to recognize an environment surrounding a mobile body to be controlled, and change parameters used for self-position estimation by the mobile body based on the recognized environment.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 20, 2022
    Applicant: SONY GROUP CORPORATION
    Inventors: Yusuke TAKAHASHI, Ryo WATANABE, Yukihiro SAITO, Masaomi NABETA
  • Publication number: 20210381657
    Abstract: This application relates to the field of lighting, and discloses an LED filament including: at least one LED section, each LED section including at least two LED chips, adjacent LED chips being electrically connected to each other; electrodes, electrically connected to the LED section; and a light conversion layer, wrapping the LED section and parts of the electrodes, and including a top layer and a carrying layer, the carrying layer including a base layer and a transparent layer, the base layer including an upper surface and a lower surface opposite to each other, the upper surface of the base layer being in contact with a part of the top layer, and a part of the lower surface of the base layer being in contact with the transparent layer. This application has the characteristics of uniform light emission and good heat dissipation effect.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventors: AIMING XIONG, LIN ZHOU, MINGBIN WANG, CHENKUN CHEN, CHIHSHAN YU, TAO JIANG, YUEXING LI, HAYATO UNAGIIKE, YUKIHIRO SAITO, ZHICHAO ZHANG
  • Patent number: 11168845
    Abstract: A light bulb, consisting of: a lamp housing doped with a golden yellow material or its surface coated with a yellow film; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; and a single LED filament, disposed in the lamp housing, the LED filament comprising: a plurality of LED sections, each of the LED sections includes at least two LED chips that are electrically connected to each other by a wire; a plurality of conductive sections, each of the conductive sections is located between the two adjacent LED sections and configured to electrically connect the two adjacent LED sections; a plurality of supporting arms, each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with the LED fila
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: November 9, 2021
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Wei-Hong Xu, Yukihiro Saito, Hayato Unagiike, Ai-Ming Xiong, Jun-Feng Xu, Yi-Ching Chen
  • Patent number: 11168844
    Abstract: An LED filament light bulb, consisting of: a bulb shell doped with a golden yellow material or its surface coated with a yellow film; a bulb base connected to the bulb shell; a stem connected to the bulb base and located in the bulb shell, the stem comprises a stand extending to the center of the bulb shell; and a single filament, disposed in the light housing, further comprising a plurality of supporting arms, each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with the LED filament.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 9, 2021
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Wei-Hong Xu, Yukihiro Saito, Hayato Unagiike, Ai-Ming Xiong, Jun-Feng Xu, Yi-Ching Chen
  • Publication number: 20210341110
    Abstract: An LED filament and an LED light bulb applying the same are provided. The LED filament includes a at least one LED section, wherein the at least one LED section comprises at least two LED chips electrically connected to each other through a first wire, and at least two conductive electrodes, wherein each of the at least two conductive electrodes is electrically connected to corresponding one of the at least one LED section; and a light conversion layer, covering the at least one LED section and a portion of each of the at least two conductive electrodes, a portion of the first wire is exposed outside the light conversion layer.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Inventors: TAO JIANG, ZHICHAO ZHANG, YUKIHIRO SAITO, HAYATO UNAGIIKE
  • Patent number: 11125393
    Abstract: An LED light bulb, comprising:a lamp housing, doped with a golden yellow material or coated with a yellow film on its surface,a bulb base, connected with the lamp housing, a stem with a stand extending to the center of the lamp housing, disposed in the lamp housing, a LED filament disposed in the lamp housing, at least a half of the LED filament is around a center axle of the LED light bulb, where the center axle of the LED light bulb is coaxial with the axle of the stand, two conductive supports, connected with the stem and the LED filament.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 21, 2021
    Assignee: ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Wei-Hong Xu, Yukihiro Saito, Hayato Unagiike, Ai-Ming Xiong, Jun-Feng Xu, Yi-Ching Chen
  • Patent number: 11121292
    Abstract: An LED light bulb, consisting of: a lamp housing doped with a golden yellow material or its surface coated with a yellow film; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; and a single LED filament, disposed in the lamp housing, the LED filament comprising: a light conversion layer, coated on at least two sides of the LED chip and the conductive electrodes, and a portion of each of the conductive electrodes is not coated with the light conversion layer, the light conversion layer has at least one top layer and one base layer, the top layer and the base layer are disposed on the opposing surface of the LED chip, wherein the top layer of the light conversion layer in the conductive section comprises a wavy concave structure with groove, the two adjacent grooves of the wavy concave structure have different width at the positions aligned in the axial direction of the LED filamen
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: September 14, 2021
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Weihong Xu, Yukihiro Saito, Hayato Unagike, Aiming Xiong, Junfeng Xu, Yiching Chen
  • Patent number: 11121293
    Abstract: An LED light bulb, consisting of: a lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, a single LED filament, disposed in the lamp housing, the LED filament comprising: two conductive supports, each of the two conductive supports connected with the stem and the flexible LED filament; a driving circuit, electrically connected with both the two conductive supports and the bulb base; and a plurality of supporting arms, each of the supporting arms comprise a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with the LED filament; where anodes of LED sections are electrically connected together to serve as a first positive electrode P1 and/or a second positive electrode P2 of the flexible LED filament, cathodes of LED section serve as a first negative electrode N1 and/or a second
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: September 14, 2021
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Tao Jiang, Weihong Xu, Yukihiro Saito, Hayato Unagike, Aiming Xiong, Junfeng Xu, Yiching Chen
  • Publication number: 20210221952
    Abstract: The present disclosure discloses an LED filament, comprising a plurality of LED chips; at least two electrodes, each of the at least two electrodes is connected to at least one of the plurality of LED chips; and a light conversion layer comprising a top layer and a base layer, coated on at least two sides of the at least two electrodes, and a portion of the at least two electrodes is exposed by the light conversion layer, where the top layer and the base layer are located at two sides of the plurality of LED chips, respectively, wherein the base layer comprising an organosilicon-modified polyimide, a thermal curing agent and fluorescent powders. The present disclosure further discloses an LED light bulb. The base layer of the present disclosure has superior transmittance, heat resistance and mechanical strength, and is suitable for producing a flexible LED filament.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 22, 2021
    Applicant: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO.,LTD
    Inventors: Yukihiro SAITO, Hayato UNAGIIKE