Patents by Inventor Koji Murayama

Koji Murayama 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: 11882348
    Abstract: To provide a monitoring camera device capable of stably shooting a device under a high-temperature environment. The present invention is directed to a monitoring camera device A used for monitoring a device under a high-temperature environment, the monitoring camera device A including a monitoring camera 1, a housing section 3 containing the monitoring camera 1, and a cooling air pipe 8 for introducing air into the housing section 3, in which the housing section 3 includes a cylindrical main body section 31 and a rear cover section 7 attached to a rear end of the main body section 31, and the cooling air pipe 8 is attached to the rear cover section 7.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: January 23, 2024
    Assignee: MAINTECH CO., LTD.
    Inventors: Hiroshi Sekiya, Hitomaru Sakata, Koji Murayama
  • Patent number: 11390125
    Abstract: A wheel registration apparatus applied to a vehicle comprises: a transmitter that is provided on each of the four traveling wheels provided with tires and has a first controller configured to create and transmit a frame including unique identification information; and a receiver that is provided on a vehicle body, receives the frames transmitted by the transmitters provided on the four traveling wheels via a reception antenna in a registration mode, and has a second controller configured to register four pieces of the identification information included in the respective frames as pieces of identification information of the transmitters provided on current four traveling wheels.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: July 19, 2022
    Assignee: DENSO CORPORATION
    Inventors: Koji Murayama, Masashi Urabe, Masahiro Fukuda
  • Publication number: 20220191353
    Abstract: To provide a monitoring camera device capable of stably shooting a device under a high-temperature environment. The present invention is directed to a monitoring camera device A used for monitoring a device under a high-temperature environment, the monitoring camera device A including a monitoring camera 1, a housing section 3 containing the monitoring camera 1, and a cooling air pipe 8 for introducing air into the housing section 3, in which the housing section 3 includes a cylindrical main body section 31 and a rear cover section 7 attached to a rear end of the main body section 31, and the cooling air pipe 8 is attached to the rear cover section 7.
    Type: Application
    Filed: March 18, 2020
    Publication date: June 16, 2022
    Inventors: Hiroshi SEKIYA, Hitomaru SAKATA, Koji MURAYAMA
  • Publication number: 20210023892
    Abstract: A wheel registration apparatus applied to a vehicle comprises: a transmitter that is provided on each of the four traveling wheels provided with tires and has a first controller configured to create and transmit a frame including unique identification information; and a receiver that is provided on a vehicle body, receives the frames transmitted by the transmitters provided on the four traveling wheels via a reception antenna in a registration mode, and has a second controller configured to register four pieces of the identification information included in the respective frames as pieces of identification information of the transmitters provided on current four traveling wheels.
    Type: Application
    Filed: October 15, 2020
    Publication date: January 28, 2021
    Inventors: Koji MURAYAMA, Masashi URABE, Masahiro FUKUDA
  • Patent number: 10818808
    Abstract: A method of producing a nanograin material wherein a hole-transporting surfactant is injected into an InP/ZnS dispersion solution, and the surface of an InP/ZnS quantum dot is covered with the hole-transporting surfactant to prepare an InP/ZnS dispersion solution with a hole-transporting surfactant. The InP/ZnS dispersion solution with a hole-transporting surfactant is then applied to a substrate using a spin coating process of the like to form a quantum dot layer with a hole-transporting surfactant having one or more layers. Then, a dispersion solution (replacement solution) containing an electron-transporting surfactant is prepared. The substrate having the quantum dot layer with a hole-transporting surfactant is immersed in the replacement solution for a predetermined time, and part of the hole-transporting surfactant is replaced with the electron-transporting surfactant to form a quantum dot layer having one or more layer.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: October 27, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Murayama
  • Patent number: 9722198
    Abstract: A light-emitting device having a first light-emitting layer with a first quantum dot having a first core part and a first shell part. The first shell part has a surface coated with a surfactant, and the first shell part has a thickness of 3 to 5 ML based on the constituent molecule of the first shell part. The light-emitting device also can have second light-emitting layer with a second quantum dot having a second core part and a second shell part. The second shell part has a surface coated with two types of hole-transporting and electron-transporting surfactants, and the second shell part has a thickness of less than 3 ML based on the constituent molecule of the second shell part.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 1, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Murayama, Haruya Miyata
  • Patent number: 9608213
    Abstract: A method for manufacturing a functional material including a porous metal complex with nanoparticles included therein, the method including a configuration of adding more than one particle constituent raw material constituting the nanoparticles and a porous metal complex to a solvent, and then synthesizing nanoparticles included in the porous metal complex by heating to a desired temperature. In addition, provided is an electronic component including an electronic component element using a functional material including a porous metal complex with nanoparticles included therein.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: March 28, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takuo Wakaoka, Koji Murayama, Hiroshi Takagi, Haruya Miyata, Yoshihiko Takano, Yasuaki Kainuma
  • Patent number: 9595625
    Abstract: Quantum dots (nanoparticle material) each having a core-shell structure including a core part and a shell part that protects the core part. The shell part of the quantum dot has a thickness T of 3 to 5 ML based on the constituent molecule of the shell part. A light-emitting device includes the quantum dots.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: March 14, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Murayama, Haruya Miyata
  • Patent number: 9496434
    Abstract: A solar cell that includes a negative electrode made of Al—Nd or the like formed on a substrate, an electron transport layer made of n-type Si or the like, a quantum dot arrangement layer made of graphene or the like, a quantum dot layer, a positive hole transport layer made of p-type Si or the like, and a positive electrode made of ITO or the like are sequentially formed on a surface of the negative electrode. Output electrodes are formed on the positive electrode so that at least a part of the surface of the positive electrode is exposed. The quantum dot layer is constructed such that quantum dots of Si cluster particles are three-dimensionally periodically arranged. The Si cluster particles have an average particle size of 3 nm or less, and the interparticle distance between the Si cluster particles is 1 nm or less.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: November 15, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Murayama, Masanobu Nomura, Yasushi Iwata, Kanako Tomita
  • Publication number: 20160240730
    Abstract: A light-emitting device that includes an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode on a transparent substrate. The light-emitting layer has a plurality of quantum dots dispersed therein, and a hole-transporting material is dispersed in gaps between the quantum dots. To for manufacturing the light-emitting device, a quantum dot dispersing solution having the quantum dots dispersed therein, and a hole-transporting solution containing a soluble hole-transporting material that is soluble in the quantum dot dispersing solution and has a hole transport property are prepared. The hole-transporting solution is applied onto the hole injection layer to form a hole-transporting coating film, and the quantum dot dispersing solution is then applied onto the hole-transporting coating film to dissolve the soluble hole-transporting material in the quantum dot dispersing solution.
    Type: Application
    Filed: April 28, 2016
    Publication date: August 18, 2016
    Inventors: KOJI MURAYAMA, HARUYA MIYATA
  • Publication number: 20160233449
    Abstract: A light-emitting device having a first light-emitting layer with a first quantum dot having a first core part and a first shell part. The first shell part has a surface coated with a surfactant, and the first shell part has a thickness of 3 to 5 ML based on the constituent molecule of the first shell part. The light-emitting device also can have second light-emitting layer with a second quantum dot having a second core part and a second shell part. The second shell part has a surface coated with two types of hole-transporting and electron-transporting surfactants, and the second shell part has a thickness of less than 3 ML based on the constituent molecule of the second shell part.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: Koji Murayama, Haruya Miyata
  • Publication number: 20160225947
    Abstract: Quantum dots (nanoparticle material) each having a core-shell structure including a core part and a shell part that protects the core part. The shell part of the quantum dot has a thickness T of 3 to 5 ML based on the constituent molecule of the shell part. A light-emitting device includes the quantum dots.
    Type: Application
    Filed: April 12, 2016
    Publication date: August 4, 2016
    Inventors: Koji Murayama, Haruya Miyata
  • Patent number: 8931850
    Abstract: A seat back frame includes a main frame that forms a frame of a seat back of a main seat, and an auxiliary frame that forms a frame of a seat back of an auxiliary seat adjacent to the main seat in a width direction, and that is integrally formed with the main frame. The main frame has a first open portion that opens toward a side with the auxiliary seat in the width direction. An end portion of the auxiliary frame is a fitting structure that fits together with the first open portion, and a portion of the fitting structure is welded.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: January 13, 2015
    Assignees: Toyota Boshoku Kabushiki Kaisha, NHK Spring Co., Ltd
    Inventors: Atsutaka Mitsuhashi, Ryoshu Nakane, Koji Murayama
  • Patent number: 8905485
    Abstract: A seat back frame includes a main frame that forms a frame of a seat back of a main seat, and an auxiliary frame that forms a frame of a seat back of an auxiliary seat adjacent to the main seat in a width direction, and that is integrally formed with the main frame. The main frame has a first open portion that opens toward a side with the auxiliary seat in the width direction. An end portion of the auxiliary frame is a fitting structure that fits together with the first open portion, and a portion of the fitting structure is welded.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: December 9, 2014
    Assignees: Toyota Boshoku Kabushiki Kaisha, NHK Spring Co., Ltd
    Inventors: Atsutaka Mitsuhashi, Ryoshu Nakane, Koji Murayama
  • Publication number: 20140306183
    Abstract: A method for manufacturing a functional material including a porous metal complex with nanoparticles included therein, the method including a configuration of adding more than one particle constituent raw material constituting the nanoparticles and a porous metal complex to a solvent, and then synthesizing nanoparticles included in the porous metal complex by heating to a desired temperature. In addition, provided is an electronic component including an electronic component element using a functional material including a porous metal complex with nanoparticles included therein.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: Takuo Wakaoka, Koji Murayama, Hiroshi Takagi, Haruya Miyata, Yoshihiko Takano, Yasuaki Kainuma
  • Publication number: 20140166090
    Abstract: A solar cell that includes a negative electrode made of Al—Nd or the like formed on a substrate, an electron transport layer made of n-type Si or the like, a quantum dot arrangement layer made of graphene or the like, a quantum dot layer, a positive hole transport layer made of p-type Si or the like, and a positive electrode made of ITO or the like are sequentially formed on a surface of the negative electrode. Output electrodes are formed on the positive electrode so that at least a part of the surface of the positive electrode is exposed. The quantum dot layer is constructed such that quantum dots of Si cluster particles are three-dimensionally periodically arranged. The Si cluster particles have an average particle size of 3 nm or less, and the interparticle distance between the Si cluster particles is 1 nm or less.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Murayama, Masanobu Nomura, Yasushi Iwata, Kanako Tomita
  • Patent number: 8742399
    Abstract: A quantum dot, which is an ultrafine grain, has a core-shell structure having a core portion and a shell portion protecting the core portion. The surface of the shell portion is covered with two kinds of surfactants, a hole-transporting surfactant and an electron-transporting surfactant, which are concurrently present. Moreover, the hole-transporting surfactant has a HOMO level which tunneling-resonates with the valence band of the quantum dot and the electron-transporting surfactant has a LUMO level which tunneling-resonates with the transfer band of the quantum dot. Thus, a nanograin material which has good carrier transport efficiency and is suitable for use in a photoelectric conversion device is achieved.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: June 3, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Koji Murayama
  • Patent number: 8679880
    Abstract: An electron transporting surfactant is added to a raw material solution such that the electron transporting surfactant is coordinated on the surfaces of quantum dots, and after the dispersion solvent is evaporated by vacuum drying, the immersion in a solvent containing a hole transporting surfactant prepares a quantum dot dispersed solution with a portion of the electron transporting surfactant replaced with the hole transporting surfactant. The quantum dot dispersed solution is applied onto a substrate to prepare a hole transport layer and a quantum dot layer at the same time, and thereby to achieve a thin film which has a two-layer structure.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: March 25, 2014
    Assignee: Murata Manufaaturing Co., Ltd.
    Inventor: Koji Murayama
  • Publication number: 20120248410
    Abstract: An electron transporting surfactant is added to a raw material solution such that the electron transporting surfactant is coordinated on the surfaces of quantum dots, and after the dispersion solvent is evaporated by vacuum drying, the immersion in a solvent containing a hole transporting surfactant prepares a quantum dot dispersed solution with a portion of the electron transporting surfactant replaced with the hole transporting surfactant. The quantum dot dispersed solution is applied onto a substrate to prepare a hole transport layer and a quantum dot layer at the same time, and thereby to achieve a thin film which has a two-layer structure.
    Type: Application
    Filed: June 15, 2012
    Publication date: October 4, 2012
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Koji Murayama
  • Publication number: 20120174969
    Abstract: A method of producing a nanograin material wherein a hole-transporting surfactant is injected into an InP/ZnS dispersion solution, and the surface of an InP/ZnS quantum dot is covered with the hole-transporting surfactant to prepare an InP/ZnS dispersion solution with a hole-transporting surfactant. The InP/ZnS dispersion solution with a hole-transporting surfactant is then applied to a substrate using a spin coating process of the like to form a quantum dot layer with a hole-transporting surfactant having one or more layers. Then, a dispersion solution (replacement solution) containing an electron-transporting surfactant is prepared. The substrate having the quantum dot layer with a hole-transporting surfactant is immersed in the replacement solution for a predetermined time, and part of the hole-transporting surfactant is replaced with the electron-transporting surfactant to form a quantum dot layer having one or more layer.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 12, 2012
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Koji Murayama