Patents by Inventor Hiroshi Sakama
Hiroshi Sakama 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).
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Patent number: 11462806Abstract: Provided is a metal-air battery and a method of using the same that make it possible to obtain a high output while also promoting the discharge of product associated with power generation and achieve stable output over time.Type: GrantFiled: July 23, 2019Date of Patent: October 4, 2022Assignee: FUJIKURA COMPOSITES INC.Inventors: Masaki Takahashi, Tsutomu Narita, Yuka Amamori, Hiroshi Sakama
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Publication number: 20210305666Abstract: Provided is a metal-air battery and a method of using the same that make it possible to obtain a high output while also promoting the discharge of product associated with power generation and achieve stable output over time.Type: ApplicationFiled: July 23, 2019Publication date: September 30, 2021Inventors: Masaki Takahashi, Tsutomu Narita, Yuka Amamori, Hiroshi Sakama
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Patent number: 11133565Abstract: A metal-air battery is comprised by a metal-air battery unit having a plurality of juxtaposed metal-air battery cells with a small number of components and a simple structure for injection of the electrolytic solution into each cell. Each metal-air battery cell has an air electrode, a metal electrode arranged to face the air electrode, and a casing configured to support the air electrode and the metal electrode. Each casing includes an air chamber and a liquid chamber. Each air chamber has an upper part opened to the outside. The casing has a liquid feeding port communicating with the liquid chamber for admitting an electrolytic solution when the metal-air battery unit is lowered into a container of electrolytic solution.Type: GrantFiled: August 17, 2017Date of Patent: September 28, 2021Assignee: FUJIKURA COMPOSITES INC.Inventors: Masaki Takahashi, Tsutomu Narita, Yuka Amamori, Hiroshi Sakama
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Patent number: 10826061Abstract: It is an object to provide a metal-air battery and a method for removing an oxide film that can appropriately remove an oxide film while reducing waste of power required for removing the oxide film. The metal-air battery of the present invention includes a battery main body portion in which a metal electrode and an air electrode are arranged so as to be opposed to each other through an electrolytic solution, a USB terminal to which an external load is connected, and a controller for electrically connecting the battery main body portion and the USB terminal, the controller includes a microcomputer for determining connection or disconnection of an external load to or from the USB terminal, and when the microcomputer confirms the connection of the external load, a current for removing an oxide film is made to flow through a circuit including the metal electrode, the air electrode, and an oxide film removing resistor.Type: GrantFiled: September 26, 2017Date of Patent: November 3, 2020Assignee: FUJIKURA COMPOSITES INC.Inventors: Masaki Takahashi, Yuka Amamori, Hiroshi Sakama
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Publication number: 20200280064Abstract: It is an object to provide a metal-air battery and a method for removing an oxide film that can appropriately remove an oxide film while reducing waste of power required for removing the oxide film. The metal-air battery of the present invention includes a battery main body portion in which a metal electrode and an air electrode are arranged so as to be opposed to each other through an electrolytic solution, a USB terminal to which an external load is connected, and a controller for electrically connecting the battery main body portion and the USB terminal, the controller includes a microcomputer for determining connection or disconnection of an external load to or from the USB terminal, and when the microcomputer confirms the connection of the external load, a current for removing an oxide film is made to flow through a circuit including the metal electrode, the air electrode, and an oxide film removing resistor.Type: ApplicationFiled: September 26, 2017Publication date: September 3, 2020Inventors: Masaki Takahashi, Yuka Amamori, Hiroshi Sakama
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Patent number: 10763559Abstract: An object is especially to provide a metal-air battery that ensures a high output and continuance of the output over a long period of time as compared with a conventional one. A metal-air battery in the present invention includes a case, air electrodes disposed on both sides of the case, and a plurality of metal electrodes disposed inwardly separately from the air electrodes. The metal electrodes are opposed to one another via a space (S). The metal-air battery of the present invention can inhibit the reaction product from depositing between the air electrode and the metal electrode. A degree of freedom of a distance between the air electrode and the metal electrode is high. As described above, the high output and the continuance of the output over a long period of time are ensured.Type: GrantFiled: July 28, 2016Date of Patent: September 1, 2020Assignee: FUJIKURA RUBBER LTD.Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Patent number: 10749230Abstract: An object is especially to provide a metal-air battery unit that has a compact configuration including a water supply space and an electrical system space. The metal-air battery unit of the present invention includes a unit main body including a plurality of metal-air battery cells, a water supply space supplying an electrolyte to the metal-air battery cells and an electrical system space coupling to a positive electrode and a negative electrode of the metal-air battery cell to control a battery output, disposed on an outer surface of the unit main body.Type: GrantFiled: July 28, 2016Date of Patent: August 18, 2020Assignee: FUJIKURA RUBBER LTD.Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Publication number: 20200058976Abstract: An object is especially to provide a metal-air battery unit that has a compact configuration including a water supply space and an electrical system space. The metal-air battery unit of the present invention includes a unit main body including a plurality of metal-air battery cells, a water supply space supplying an electrolyte to the metal-air battery cells and an electrical system space coupling to a positive electrode and a negative electrode of the metal-air battery cell to control a battery output, disposed on an outer surface of the unit main body.Type: ApplicationFiled: July 28, 2016Publication date: February 20, 2020Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Publication number: 20190372086Abstract: A metal-air battery is comprised by a metal-air battery unit having a plurality of juxtaposed metal-air battery cells with a small number of components and a simple structure for injection of the electrolytic solution into each cell. Each metal-air battery cell has an air electrode, a metal electrode arranged to face the air electrode, and a casing configured to support the air electrode and the metal electrode. Each casing includes an air chamber and a liquid chamber. Each air chamber has an upper part opened to the outside. The casing has a liquid feeding port communicating with the liquid chamber for admitting an electrolytic solution when the metal-air battery unit is lowered into a container of electrolytic solution.Type: ApplicationFiled: August 17, 2018Publication date: December 5, 2019Inventors: Masaki Takahashi, Tsutomu Narita, Yuka Amamori, Hiroshi Sakama
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Patent number: 10411226Abstract: It is an object to provide a metal-air battery capable of, in particular, properly discharging produced gas externally, and performing rapid water supply. A metal-air battery according to the present invention is characterized by including a unit body including a plurality of metal-air battery cells; a water supply space provided on a top surface of the unit body and is common to the metal-air battery cells; and a wiring opening which communicably connects with the water supply space and from which wires connected to electrodes of the metal-air battery cells are drawn out. A tubular portion having the wiring opening projects from the top surface of the unit body.Type: GrantFiled: July 28, 2016Date of Patent: September 10, 2019Assignee: FUJIKURA RUBBER LTD.Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Publication number: 20190036187Abstract: An object is especially to provide a metal-air battery that ensures a high output and continuance of the output over a long period of time as compared with a conventional one. A metal-air battery in the present invention includes a case, air electrodes disposed on both sides of the case, and a plurality of metal electrodes disposed inwardly separately from the air electrodes. The metal electrodes are opposed to one another via a space (S). The metal-air battery of the present invention can inhibit the reaction product from depositing between the air electrode and the metal electrode. A degree of freedom of a distance between the air electrode and the metal electrode is high. As described above, the high output and the continuance of the output over a long period of time are ensured.Type: ApplicationFiled: July 28, 2016Publication date: January 31, 2019Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Publication number: 20180323411Abstract: It is an object to provide a metal-air battery capable of, in particular, properly discharging produced gas externally, and performing rapid water supply. A metal-air battery according to the present invention is characterized by including a unit body including a plurality of metal-air battery cells; a water supply space provided on a top surface of the unit body and is common to the metal-air battery cells; and a wiring opening which communicably connects with the water supply space and from which wires connected to electrodes of the metal-air battery cells are drawn out. A tubular portion having the wiring opening projects from the top surface of the unit body.Type: ApplicationFiled: July 28, 2016Publication date: November 8, 2018Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Publication number: 20180076425Abstract: It is an object to provide a metal-air battery capable of, in particular, properly discharging produced gas externally, and performing rapid water supply. A metal-air battery according to the present invention is characterized by including a unit body including a plurality of metal-air battery cells; a water supply space provided on a top surface of the unit body and is common to the metal-air battery cells; and a wiring opening which communicably connects with the water supply space and from which wires connected to electrodes of the metal-air battery cells are drawn out. A tubular portion having the wiring opening projects from the top surface of the unit body.Type: ApplicationFiled: July 28, 2016Publication date: March 15, 2018Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Publication number: 20180053945Abstract: An object of the present invention is to provide a metal-air battery capable of achieving high enough output (maximum power) to be applicable to use such as charging a cell phone. The metal-air battery of the present invention uses a metal as an active material of a negative electrode 30 and oxygen in the air as an active material of a positive electrode 20. The positive electrode 20 comprises a current collector 21 composed of a plate-like porous metal material and a conductive material layer 23 disposed on one surface side of the current collector 21. At least one surface of the current collector 21 on which the conductive material layer 23 is disposed is coated with a conductive coating material to form a coating conductive film 25.Type: ApplicationFiled: October 16, 2017Publication date: February 22, 2018Inventors: Tsutomu Narita, Masahiro Seshimo, Hirokuni Ota, Hiroshi Sakama
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Patent number: 6323923Abstract: A reflective type liquid crystal display device has a first transparent substrate, a second transparent substrate, and a light scattering liquid crystal layer disposed between the first and second transparent substrates. A solar cell is disposed on the second transparent substrate. A portion of the solar cell comprises an active element for driving the light scattering liquid crystal layer.Type: GrantFiled: April 16, 1999Date of Patent: November 27, 2001Assignee: Seiko Instruments R&D Center Inc.Inventors: Masafumi Hoshino, Shuhei Yamamoto, Shunichi Motte, Teruo Ebihara, Shigeru Senbonmatsu, Kaori Takano, Osamu Yamazaki, Naotoshi Shino, Takakazu Fukuchi, Hiroshi Sakama
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Patent number: 6266113Abstract: A reflection type liquid crystal display device according to the present invention is constructed to include: a light modulation layer having a light scattering state changed when a voltage is applied between electrode faces; at least one kind of color separation layer arranged at the back of the liquid crystal; and a reflection layer arranged at the back of the color separation layer. The light modulation layer is a polymer network type polymer scattered liquid crystal layer or a phase conversion type liquid crystal layer, and the color separation mirror is a cholesteric liquid crystal polymer layer or a dielectric multi-layered thin film characterized to reflect a light within a predetermined wavelength range in the visible light region selectively. A reflection preventing layer and an ultraviolet ray cut-off layer are further arranged on the surfaces of the electrode faces.Type: GrantFiled: June 19, 1997Date of Patent: July 24, 2001Assignee: Seiko Instruments Inc.Inventors: Osamu Yamazaki, Shunichi Motte, Teruo Ebihara, Shigeru Senbonmatsu, Kaori Taniguchi, Takakazu Fukuchi, Hiroshi Sakama, Masafumi Hoshino, Naotoshi Shino, Shuhei Yamamoto
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Patent number: 5990995Abstract: A reflection type liquid crystal display device comprises a pair of substrates having electrodes, a light scattering type liquid crystal layer interposed between the substrates, a reflection layer disposed over a rear surface of the light scattering type liquid crystal layer, and a light absorbing layer disposed over a rear surface of the reflection layer for absorbing a light passed through the reflection layer. The light scattering type liquid crystal layer changes into a scattering state or a transparent state in accordance with a change in a voltage level between the electrodes, and transmits 60% or more of incident light irrespective of the change in the voltage level between the electrodes. The reflection layer has a reflectivity within a range of 10 to 50% for reflecting a forward scattered light passed through the light scattering type liquid crystal layer.Type: GrantFiled: June 18, 1997Date of Patent: November 23, 1999Assignee: Seiko Instruments Inc.Inventors: Teruo Ebihara, Osamu Yamazaki, Shunichi Motte, Shigeru Senbonmatsu, Kaori Taniguchi, Naotoshi Shino, Shuhei Yamamoto, Hiroshi Sakama, Masafumi Hoshino, Takakazu Fukuchi
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Patent number: D820200Type: GrantFiled: August 10, 2016Date of Patent: June 12, 2018Assignee: FUJIKURA RUBBER LTD.Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama
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Patent number: D822603Type: GrantFiled: August 10, 2016Date of Patent: July 10, 2018Assignee: FUJIKURA RUBBER LTD.Inventors: Masaki Takahashi, Tsutomu Narita, Hiroshi Sakama
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Patent number: D823238Type: GrantFiled: August 10, 2016Date of Patent: July 17, 2018Assignee: FUJIKURA RUBBER LTD.Inventors: Masaki Takahashi, Tsutomu Narita, Yoshiharu Nakajima, Hiroshi Sakama