Patents by Inventor Yasuhiko Kasama
Yasuhiko Kasama 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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Publication number: 20210223205Abstract: The objective of the present invention is to provide a high-sensitivity molecular detecting device using metal ion encapsulated fullerene capable of detection even at ppt level concentrations. This high-sensitivity molecular detecting device using metal ion encapsulated fullerene includes a container having an introduction port for introducing detected molecule into the main body of the container, complex of dye and metal ion encapsulated fullerene contained inside the container, a pair of electrodes, a light radiating means for irradiating the inside of the container with light, and an ammeter for measuring a current flowing between the electrodes; and an electron orbit energy level is set such that there is no electron movement in a ground state without light irradiation, and electron separated from the detected molecule moves into vacancy generated by means of an excitation in an excited state resulting from light irradiation.Type: ApplicationFiled: April 1, 2019Publication date: July 22, 2021Inventors: Kazuhiko KAWACHI, Shoichi ONO, Tomoo KAMIGAKI, Yasuhiko KASAMA
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Patent number: 9653218Abstract: An electric double-layer capacitor is provided which is larger in electrostatic capacitance, and can be much higher in rated voltage, than that in the prior art using a liquid electrolyte solely composed of an ionic liquid. Having an electrolyte and electrodes, the capacitor incorporates an atom encapsulated fullerene or an atom encapsulated fullerene salt in the electrolyte. The electrolyte can either be a liquid solution or a solid. With the electrolyte being a solid, cations of the atom encapsulated fullerene or atom encapsulated fullerene salt may either be made movable or static in the electrolyte.Type: GrantFiled: June 24, 2013Date of Patent: May 16, 2017Assignees: IDEA INTERNATIONAL INC., TOHOKU UNIVERSITYInventors: Eunsang Kwon, Yasuhiko Kasama, Kazuhiko Kawachi, Kenichiro Komatsu
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Patent number: 9293721Abstract: Provided is a hole-blocking layer which has excellent basic characteristics such as high photoelectric conversion efficiency, while exhibiting excellent productivity. The hole-blocking layer is produced by a process that has a step of bringing an aqueous solution containing hydrogen peroxide and titanium (IV) oxysulfate into contact with the surface of a member on which the hole-blocking layer is to be formed, and holding the contact between the aqueous solution and the member at 50 to 120° C., so that an amorphous titanium oxide precursor precipitates on the surface of the member; and a step of drying the amorphous titanium oxide precursor that has precipitated on the member.Type: GrantFiled: August 11, 2010Date of Patent: March 22, 2016Assignee: Ideal Star Inc.Inventors: Yasuhiko Kasama, Kenji Omote, Morihiko Saida, Haruna Oizumi, Hiroyuki Sagami, Kuniyoshi Yokoo, Takashi Saita, Kohshin Takahashi, Takayuki Kuwabara
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Publication number: 20150340168Abstract: An electric double-layer capacitor is provided which is larger in electrostatic capacitance, and can be much higher in rated voltage, than that in the prior art using a liquid electrolyte solely composed of an ionic liquid. Having an electrolyte and electrodes, the capacitor incorporates an atom encapsulated fullerene or an atom encapsulated fullerene salt in the electrolyte. The electrolyte can either be a liquid solution or a solid. With the electrolyte being a solid, cations of the atom encapsulated fullerene or atom encapsulated fullerene salt may either be made movable or static in the electrolyte.Type: ApplicationFiled: June 24, 2013Publication date: November 26, 2015Inventors: EUNSANG KWON, YASUHIKO KASAMA, KAZUHIKO KAWACHI, KENICHIRO KOMATSU
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Publication number: 20130061660Abstract: A gas sensor, which is extremely compact to be arranged for separated gas piping in semiconductor device manufacturing equipment, a gas measuring system using such gas sensor, and a gas detection module for the gas measuring system. The gas sensor has a gas detection device containing a dielectric semiconductor, the electric conductivity of the gas detection device varying in response to the degree of adsorption of gases to the gas detection device, a capacitive element connected in series to the gas detection device, and a pair of electrodes which are connected to electric terminals of an electric element comprising the gas detection device and the capacitive element, wherein the gas sensor is capable of detecting the degree of adsorption of gases to the gas detection device from an electrical response to a voltage which is applied to the electrodes and which periodically varies and reverses in polarity.Type: ApplicationFiled: September 14, 2012Publication date: March 14, 2013Applicant: Ideal Star Inc.Inventors: Yasuhiko Kasama, Kenji Omote, Kuniyoshi Yokoo, Yuzo Mizobuchi, Haruna Oizumi, Morihiko Saida, Hiroyuki Sagami, Kazuaki Mizokami, Takeo Furukawa
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Patent number: 8381587Abstract: A gas sensor, which is extremely compact to be arranged for separated gas piping in semiconductor device manufacturing equipment, a gas measuring system using such gas sensor, and a gas detection module for the gas measuring system. The gas sensor has a gas detection device containing a dielectric semiconductor, the electric conductivity of the gas detection device varying in response to the degree of adsorption of gases to the gas detection device, a capacitive element connected in series to the gas detection device, and a pair of electrodes which are connected to electric terminals of an electric element comprising the gas detection device and the capacitive element, wherein the gas sensor is capable of detecting the degree of adsorption of gases to the gas detection device from an electrical response to a voltage which is applied to the electrodes and which periodically varies and reverses in polarity.Type: GrantFiled: May 8, 2008Date of Patent: February 26, 2013Assignee: Ideal Star Inc.Inventors: Yasuhiko Kasama, Kenji Omote, Kuniyoshi Yokoo, Yuzo Mizobuchi, Haruna Oizumi, Morihiko Saida, Hiroyuki Sagami, Kazuaki Mizokami, Takeo Furukawa
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Patent number: 8367033Abstract: In order to isolate and purify an endohedral fullerene, a solvent washing was performed using toluene to concentrate the endohedral fullerene in a residual, but endohedral fullerene could not be efficiently purified because impurities other than the endohedral fullerene could not be sufficiently removed. Thus, the endohedral fullerene is isolated and purified by using a solvent such as chloronaphthalene or tetralin having a high solubility for the endohedral fullerene and concentrating the endohedral fullerene in the solvent. The endohedral fullerene isolated and purified by solvent extraction has a cluster structure where the endohedral fullerene is surrounded with empty fullerenes. Thus, this endohedral fullerene is highly stable and is a useful material applicable to various fields such as medical care and electronics.Type: GrantFiled: April 20, 2007Date of Patent: February 5, 2013Inventors: Hiroshi Okada, Yoshinori Sibata, Kuniyoshi Yokoo, Yuzo Mizobuchi, Kenji Omote, Yasuhiko Kasama
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Publication number: 20120211730Abstract: Provided is a hole-blocking layer which has excellent basic characteristics such as high photoelectric conversion efficiency, while exhibiting excellent productivity. The hole-blocking layer is produced by a process that has a step of bringing an aqueous solution containing hydrogen peroxide and titanium (IV) oxysulfate into contact with the surface of a member on which the hole-blocking layer is to be formed, and holding the contact between the aqueous solution and the member at 50 to 120° C., so that an amorphous titanium oxide precursor precipitates on the surface of the member; and a step of drying the amorphous titanium oxide precursor that has precipitated on the member.Type: ApplicationFiled: August 11, 2010Publication date: August 23, 2012Applicant: IDEAL STAR INC.Inventors: Yasuhiko Kasama, Kenji Omote, Morihiko Saida, Haruna Oizumi, Hiroyuki Sagami, Kuniyoshi Yokoo, Takashi Saita, Kohshin Takahashi, Takayuki Kuwabara
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Patent number: 8212240Abstract: An element capable of manufacturing various devices of any shape having plasticity or flexibility without being limited by shape and a method for manufacturing thereof are provided. An element characterized by that a circuit element is formed continuously or intermittently in the longitudinal direction. An element characterized by that a cross section having a plurality of areas forming a circuit is formed continuously or intermittently in the longitudinal direction.Type: GrantFiled: January 5, 2009Date of Patent: July 3, 2012Assignee: Ideal Star Inc.Inventors: Yasuhiko Kasama, Satoshi Fujimoto, Kenji Omote
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Publication number: 20100206049Abstract: A gas sensor, which is extremely compact to be arranged for separated gas piping in semiconductor device manufacturing equipment, a gas measuring system using such gas sensor, and a gas detection module for the gas measuring system. The gas sensor has a gas detection device containing a dielectric semiconductor, the electric conductivity of the gas detection device varying in response to the degree of adsorption of gases to the gas detection device, a capacitive element connected in series to the gas detection device, and a pair of electrodes which are connected to electric terminals of an electric element comprising the gas detection device and the capacitive element, wherein the gas sensor is capable of detecting the degree of adsorption of gases to the gas detection device from an electrical response to a voltage which is applied to the electrodes and which periodically varies and reverses in polarity.Type: ApplicationFiled: May 8, 2008Publication date: August 19, 2010Applicants: IDEAL STAR INC., TOKYO UNIVERSITY OF SCIENCE EDUCATION FOUNDATION ADMINISTRATIVE ORGANIZATIONInventors: Yasuhiko Kasama, Kenji Omote, Kuniyoshi Yokoo, Yuzo Mizobuchi, Haruna Oizumi, Morihiko Saida, Hiroyuki Sagami, Kazuaki Mizokami, Takeo Furukawa
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Patent number: 7763912Abstract: A sensor whose size can be decreased without marring the performance and which can be installed in a narrow place, an electric device, and a method for easily manufacturing the electric device. By vacuum deposition of semiconductor on a columnar body or by applying a melt, solution, or gel of semiconductor to the columnar body, a coating of semiconductor is formed. Four insulating wires, a stripe band of the connected four insulating wires are wound around the columnar body. Then, one of the insulating wires is removed to form a copper wire in the vacant portion by copper vacuum deposition. Lastly, another insulating wire not adjacent to the copper wire is removed to form an aluminum wire in the vacant portion by aluminum vacuum deposition. By measuring the resistance between the copper and aluminum wires, the intensity of light striking the semiconductor can be determined.Type: GrantFiled: September 11, 2008Date of Patent: July 27, 2010Assignee: Ideal Star Inc.Inventors: Yasuhiko Kasama, Kenji Omote
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Patent number: 7755141Abstract: Integrated circuits such as semiconductor memories, image sensors, PLA's, and the like have been formed on rigid, planar substrates such as silicon substrates. This has resulted in shapes without flexibility and limited applicabilities. Further, since multiple circuit elements are continuously formed on a flat surface, it has been impossible to produce a non-defective semiconductor memory unless all the circuit elements are fabricated without defects, making it difficult to improve a yield. It is thus devised to weave or braid linear devices into a fabric shape to prepare a planar semiconductor memory, or to bundle up linear devices to prepare a linear semiconductor memory. The integrated circuit comprising the linear devices is flexible and light-weighted, and is thus usable in various applications. It becomes possible to prepare an integrated circuit by once fabricating linear devices and selecting only non-defective ones therefrom, thereby enabling an improved production yield of integrated circuits.Type: GrantFiled: October 27, 2004Date of Patent: July 13, 2010Assignee: Ideal Star, Inc.Inventors: Yasuhiko Kasama, Kenji Omote, Noboru Kudo
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Publication number: 20100117112Abstract: A light-emitting element used for display devices and illuminating devices has been formed on a flat substrate, and therefore, when the size of such devices is increased, manufacturing apparatuses also have to be enlarged. Also, a problem involved has been that even a failure of one light-emitting element causes the entire device to fail, making improvement of production yield difficult. To solve the above problems, in the present invention, light-emitting elements are formed as linear elements, and the linear elements are combined to form a plane light-emitting device. This enables the light-emitting device to be produced by selecting only linear light-emitting elements of good quality, and enlargement of apparatuses and enhancement of production yield can be expected.Type: ApplicationFiled: January 21, 2010Publication date: May 13, 2010Applicant: IDEAL STAR INC.Inventors: Yasuhiko KASAMA, Kenji OMOTE
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Patent number: 7675230Abstract: A light-emitting element used for display devices and illuminating devices has been formed on a flat substrate, and therefore, when the size of such devices is increased, manufacturing apparatuses also have to be enlarged. Also, a problem involved has been that even a failure of one light-emitting element causes the entire device to fail, making improvement of production yield difficult. To solve the above problems, in the present invention, light-emitting elements are formed as linear elements, and the linear elements are combined to form a plane light-emitting device. This enables the light-emitting device to be produced by selecting only linear light-emitting elements of good quality, and enlargement of apparatuses and enhancement of production yield can be expected.Type: GrantFiled: July 12, 2004Date of Patent: March 9, 2010Assignee: Ideal Star Inc.Inventors: Yasuhiko Kasama, Kenji Omote
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Publication number: 20090230979Abstract: Fullerenes are a novel material that has been expected to serve as a promising material in the construction of organic devices. However, the electric conductivity of fullerenes, which has been, reported heretofore spreads over a wide range including values corresponding to insulators as well as those corresponding to semiconductors. The present invention makes it possible to improve the conductivity of fullerenes highly reproducibly by heating the fullerenes at a specified temperature in an inert gas which is flowed under a specified condition, that is, by controlling the concentration of impurities, particularly oxygen and water adsorbed to the fullerenes.Type: ApplicationFiled: September 5, 2006Publication date: September 17, 2009Applicant: IDEAL STAR INC.Inventors: Kenji Omote, Yuzo Mizobuchi, Yasuhiko Kasama
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Publication number: 20090152682Abstract: An element capable of manufacturing various devices of any shape having plasticity or flexibility without being limited by shape and a method for manufacturing thereof are provided. An element characterized by that a circuit element is formed continuously or intermittently in the longitudinal direction. An element characterized by that a cross section having a plurality of areas forming a circuit is formed continuously or intermittently in the longitudinal direction.Type: ApplicationFiled: January 5, 2009Publication date: June 18, 2009Applicant: IDEAL STAR INC.Inventors: Yasuhiko KASAMA, Satoshi Fujimoto, Kenji Omote
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Patent number: 7528541Abstract: Organic materials doped with alkali metal have been conventionally used for electron transport layers or electron injection layers which constitute light-emitting films in organic EL light-emitting elements which are used in display devices or illuminating devices. Such conventional organic materials involve problems such that a strict process control is required since the alkali metal is highly reactive and thus, likely to be formed into a hydroxide, such that the resulting light-emitting element or light-emitting device needs complete sealing, and such that life of the light-emitting element cannot be sufficiently long. The present invention uses an alkali metal-including fullerene or an organic material doped with an alkali metal-including fullerene for electron transport layers or electron injection layers which constitute light-emitting films in organic EL light-emitting elements.Type: GrantFiled: July 12, 2004Date of Patent: May 5, 2009Assignee: Ideal Star Inc.Inventors: Yasuhiko Kasama, Kenji Omote
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Patent number: 7523524Abstract: A second housing whose center portion is depressed and whose end portion around the center portion is formed like a visor is arranged around a first housing whose center portion is depressed and whose end portion around the center portion is formed like a visor, and a hollow portion is formed between the first housing and the second housing by sandwiching a packing between the end portions of the housings. Further, degassed water for preventing empty heating is filled in the hollow portion, and an ultrasonic transducer is placed on the surface of the center portion of the first housing. A weight for preventing the vibration of the wall is provided on the wall surface of the second housing. Since the vibration of the wall of the housing is suppressed by the weight, vibration energy returns toward the bottom surface of the center of the housing through water and is radiated from the bottom surface efficiently as ultrasonic waves.Type: GrantFiled: August 27, 2003Date of Patent: April 28, 2009Assignee: Alps Electric Co., Ltd.Inventors: Kenichi Mitsumori, Yasuhiko Kasama, Nobuaki Haga, Shoichi Ono, Junichiro Soejima, Norihisa Takahashi, Akio Fujie, Mineo Iwasaki
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Patent number: RE42420Abstract: The wet treatment liquid feed nozzle of the invention comprises an introducing path having an introducing port, a discharging path having a discharging port, a crossing section formed by causing the introducing path and the discharging path to cross at the other ends thereof, a nozzle assembly having an opening section opening to an object to be treated, provided at the crossing section, and pressure control means, for controlling the difference between the pressure of the wet treatment liquid in contact with the object to be treated and the atmospheric pressure provided at least on the discharging path side so that the wet treatment liquid having been in contact with the object to be treated via the opening section does not flow to outside the discharging path.Type: GrantFiled: January 26, 2005Date of Patent: June 7, 2011Assignees: Alps Electric Co., Ltd., Organo CorporationInventors: Kenichi Mitsumori, Yasuhiko Kasama, Akira Abe, Oh Eui Yeol, Tadahiro Ohmi, Takashi Imaoka, Masayuki Toda
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Patent number: RE42566Abstract: The wet treatment liquid feed nozzle of the invention comprises an introducing path 10 having an introducing port 7, a discharging path 12 having a discharging port 15, a crossing section 14 formed by causing the introducing path 10 and the discharging path 12 to cross at the other ends thereof, a nozzle assembly 50 having an opening section 6 opening to an object to be treated 1, provided at the crossing section 14, and pressure control means 13, for controlling the difference between the pressure of the wet treatment liquid in contact with the object to be treated 1 and the atmospheric pressure provided at least on the discharging path 12 side so that the wet treatment liquid having been in contact with the object to be treated 1 via the opening section 6 does not flow to outside the discharging path 12.Type: GrantFiled: May 15, 2003Date of Patent: July 26, 2011Assignee: Alps Electric Co., Ltd.Inventors: Kenichi Mitsumori, Yasuhiko Kasama, Akira Abe, Oh Eui Yeol, Tadahiro Ohmi, Takashi Imaoka, Masayuki Toda