Patents by Inventor Takafumi Oka
Takafumi Oka 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: 20240115959Abstract: Provided are a program, an information processing device, a method, and a system that allow properties of an organized party to be easily grasped. An information processing device 10 is an information processing device for executing a game and includes: a setting unit 231 for setting two or more game media on a deck with which indicator information is associated; an indicator-information-point calculation unit 232 for determining points for each item of the indicator information on the basis of predetermined data associated with the game media; and an indicator-information determination unit 233 for determining the indicator information to be displayed on a game screen on the basis of the points for each item of the indicator information obtained by the indicator-information-point calculation unit 232 and associating the determined indicator information with the deck.Type: ApplicationFiled: December 18, 2023Publication date: April 11, 2024Applicant: CYGAMES, INC.Inventors: Shohei Sawa, Masayoshi Sato, Koji Otani, Yasuaki Hayashizaki, Ryota Yagi, Junpei Yamaguchi, Takafumi Oka
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Patent number: 11139638Abstract: The static charge eliminator includes a charger including one or more charging units, and a grounded needle-shaped conductor. The charger is configured to charge an insulating film such that the absolute value of the surface potential of the insulating film is 3 kV or more. The needle-shaped conductor is arranged to generate a corona discharge between the needle-shaped conductor and the insulating film charged by the charger. Thereby, the static charges on the insulating film can be reliably eliminated.Type: GrantFiled: November 30, 2017Date of Patent: October 5, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kyohei Yamakawa, Tomoya Hirata, Ryota Iriki, Takafumi Oka, Kenji Yoshikawa
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Publication number: 20190356115Abstract: The static charge eliminator includes a charger including one or more charging units, and a grounded needle-shaped conductor. The charger is configured to charge an insulating film such that the absolute value of the surface potential of the insulating film is 3 kV or more. The needle-shaped conductor is arranged to generate a corona discharge between the needle-shaped conductor and the insulating film charged by the charger. Thereby, the static charges on the insulating film can be reliably eliminated.Type: ApplicationFiled: November 30, 2017Publication date: November 21, 2019Applicant: Mitsubishi Electric CorporationInventors: Kyohei Yamakawa, Tomoya Hirata, Ryota Iriki, Takafumi Oka, Kenji Yoshikawa
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Patent number: 9024868Abstract: According to an aspect, a mobile electronic includes a first display unit, a second display unit, an input unit, and a control unit. The first display unit displays a first image. The second display unit displays a second image. To the input unit, an instruction is input. The control unit causes the second display unit to display the first image, as the second image, when a first period of time has passed since the first image is displayed by the first display unit.Type: GrantFiled: July 8, 2010Date of Patent: May 5, 2015Assignee: Kyocera CorporationInventor: Takafumi Oka
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Patent number: 9024900Abstract: Provided are an electronic device wherein an application can be started up easily using text and so forth displayed in a display unit, and a method of controlling same. A start-up unit uses inputted text to start up an application which executes various functions. If text being displayed on the display unit has been selected as a result of a detection unit detecting that contact has been made to a region in which any of the text characters of the same text is displayed, an application control unit causes the display unit to display an application start-up display to which an application is associated.Type: GrantFiled: July 12, 2011Date of Patent: May 5, 2015Assignee: Kyocera CorporationInventors: Shinya Ishizaki, Takafumi Oka, Shuji Ishikawa, Ayano Nakamura, Masashi Nakazawa
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Patent number: 8730173Abstract: Provided is an electronic device which easily selects and executes an application relating to characters inputted by a user. A cellular phone is provided with a display unit which displays a character input screen, an operation unit for inputting characters to be displayed on the character input screen, and a control unit which controls the display unit to display a candidate for conversion or a predicted candidate of the characters inputted using the operation unit. The control unit displays the name of an application or the name of a processing in the application as the candidate for conversion or a predicted candidate, and when either name is selected, executes the processing of the application corresponding to the selected name.Type: GrantFiled: September 25, 2009Date of Patent: May 20, 2014Assignee: Kyocera CorporationInventors: Shuuji Ishikawa, Yasumasa Sekigami, Takafumi Oka, Hiroyuki Bamba, Michiko Takei, Nayu Noumachi
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Publication number: 20130113748Abstract: Provided are an electronic device wherein an application can be started up easily using text and so forth displayed in a display unit, and a method of controlling same. A start-up unit uses inputted text to start up an application which executes various functions. If text being displayed on the display unit has been selected as a result of a detection unit detecting that contact has been made to a region in which any of the text characters of the same text is displayed, an application control unit causes the display unit to display an application start-up display to which an application is associated.Type: ApplicationFiled: July 12, 2011Publication date: May 9, 2013Applicant: KYOCERA CORPORATIONInventors: Shinya Ishizaki, Takafumi Oka, Shuji Ishikawa, Ayano Nakamura, Masashi Nakazawa
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Publication number: 20120105317Abstract: According to an aspect, a mobile electronic includes a first display unit, a second display unit, an input unit, and a control unit. The first display unit displays a first image. The second display unit displays a second image. To the input unit, an instruction is input. The control unit causes the second display unit to display the first image, as the second image, when a first period of time has passed since the first image is displayed by the first display unit.Type: ApplicationFiled: July 8, 2010Publication date: May 3, 2012Applicant: KYOCERA CORPORATIONInventor: Takafumi Oka
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Publication number: 20110193126Abstract: A semiconductor light-emitting element comprises: a semiconductor substrate; a semiconductor laminated structure including a first conductivity-type semiconductor layer, an active layer, a second conductivity-type semiconductor layer, and a contact layer that are sequentially laminated on the semiconductor substrate; a ridge portion in an upper portion of the semiconductor laminated structure; a channel portion adjoining opposite sides of the ridge portion; a terrace portion adjoining opposite sides of the channel portion and, with the channel portion, sandwiching the ridge portion; a first insulating film covering the channel portion and having openings on the ridge portion and the terrace portion; a single-layer adhesive layer on the first insulating film; a Pd electrode on the ridge portion and a part of the single-layer adhesive layer and electrically connected to the contact layer of the ridge portion; and a second insulating layer covering a portion not covered by the Pd electrode of the single-layer adType: ApplicationFiled: October 26, 2010Publication date: August 11, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takafumi Oka, Shinji Abe, Kazushige Kawasaki, Hitoshi Sakuma
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Publication number: 20110181504Abstract: Provided is an electronic device which easily selects and executes an application relating to characters inputted by a user. A cellular phone (1) is provided with a display unit (21) which displays a character input screen, an operation unit (11) for inputting characters to be displayed on the character input screen, and a control unit (45) which controls the display unit (21) to display a candidate for conversion or a predicted candidate of the characters inputted using the operation unit (11). The control unit (45) displays the name of an application or the name of a processing in the application as the candidate for conversion or a predicted candidate, and when either name is selected, executes the processing of the application corresponding to the selected name.Type: ApplicationFiled: September 25, 2009Publication date: July 28, 2011Applicant: KYOCERA CorporationInventors: Shuuji Ishikawa, Yasumasa Sekigami, Takafumi Oka, Hiroyuki Bamba, Michiko Takei, Nayu Noumachi
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Patent number: 7897418Abstract: A method for manufacturing a semiconductor light emitting device includes forming an insulating film on a semiconductor substrate, the insulating film having an opening therein, forming a Pd electrode in the opening and on the insulating film, and removing the portion of the Pd electrode on the insulating film by the application of a physical force to the portion, while leaving the Pd electrode in the opening.Type: GrantFiled: December 10, 2008Date of Patent: March 1, 2011Assignee: Mitsubishi Electric CorporationInventors: Takafumi Oka, Masatsugu Kusunoki, Kazushige Kawasaki, Shinji Abe, Hitoshi Sakuma
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Patent number: 7879684Abstract: A semiconductor light-emitting device comprises: a semiconductor substrate; a semiconductor layer structure on the semiconductor substrate, including an active layer and a waveguide ridge; an electrode in contact with all of a top surface of the waveguide ridge; and an insulating film coating side faces of the waveguide ridge, side faces of the electrode, and ends, but not a center portion, of an upper face of the electrode.Type: GrantFiled: February 24, 2010Date of Patent: February 1, 2011Assignee: Mitsubishi Electric CorporationInventors: Takafumi Oka, Masatsugu Kusunoki, Shinji Abe
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Publication number: 20100244074Abstract: A semiconductor light-emitting device and a manufacturing method are provided, in which a metal film is deposited with positional differences between edges of an insulating film and the metal film, opposite a ridge waveguide top face, utilizing an overhanging-shaped resist pattern. An opening through the insulating film is extended in width without another masking step by etching the insulation film on the ridge waveguide top face, using the metal film as a mask. The contact area between a p-side electrode and a p-type contact layer is increased and operating voltage of the semiconductor light-emitting device is reduced.Type: ApplicationFiled: March 3, 2010Publication date: September 30, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takafumi Oka, Shinji Abe, Kazushige Kawasaki, Junichi Horie, Hitoshi Sakuma
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Publication number: 20100219438Abstract: A semiconductor light-emitting device comprises: a semiconductor substrate; a semiconductor layer structure on the semiconductor substrate, including an active layer and a waveguide ridge; an electrode in contact with all of a top surface of the waveguide ridge; and an insulating film coating side faces of the waveguide ridge, side faces of the electrode, and ends, but not a center portion, of an upper face of the electrode.Type: ApplicationFiled: February 24, 2010Publication date: September 2, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takafumi Oka, Masatsugu Kusunoki, Shinji Abe
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Patent number: 7751456Abstract: A method for manufacturing an laser diode includes: providing a wafer having thereon a semiconductor structure; depositing an SiO2 film; forming channels and a waveguide ridge between the channels in the wafer; forming an SiO2 film over the wafer; forming a resist pattern covering the SiO2 film in the channels such that the top surfaces of the resist pattern are lower than the top surface of the deposited SiO2 film on the top of the waveguide ridge, the resist pattern exposing the SiO2 film on the top of the waveguide ridge; removing the SiO2 film and the deposited SiO2 film by wet etching, using the resist pattern as a mask, to expose a p-GaN layer in the waveguide ridge; and forming an electrode layer on the top surface of the p-GaN layer.Type: GrantFiled: October 31, 2007Date of Patent: July 6, 2010Assignee: Mitsubishi Electric CorporationInventors: Kazushige Kawasaki, Toshiaki Kitano, Takafumi Oka
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Patent number: 7611916Abstract: A method of manufacturing a semiconductor optical element, includes successively stacking a first semiconductor layer of a first conductivity type, an active layer, and a second semiconductor layer of a second conductivity type; applying a resist to the second semiconductor layer and patterning the resist into stripes by photolithography; forming recesses in the second semiconductor layer and a waveguide ridge adjacent to the recesses by dry-etching the second semiconductor layer only partially through the second semiconductor layer, using the resist as a mask; forming an insulating film on the waveguide ridge and in the recesses while leaving the resist; removing the insulating film from the resist so that the resist is exposed while the insulating film in the recess is left; removing the resist exposed; and forming an electrode on the waveguide ridge after removing the resist.Type: GrantFiled: March 4, 2009Date of Patent: November 3, 2009Assignee: Mitsubishi Electric CorporationInventors: Masatsugu Kusunoki, Takafumi Oka
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Publication number: 20090227055Abstract: A method of manufacturing a semiconductor optical element, includes successively stacking a first semiconductor layer of a first conductivity type, an active layers and a second semiconductor layer of a second conductivity type; applying a resist to the second semiconductor layer and patterning the resist into stripes by photolithography; forming recesses in the second semiconductor layer and a waveguide ridge adjacent to the recesses by dry-etching the second semiconductor layer only partially through the second semiconductor layer, using the resist as a mask; forming an insulating film on the waveguide ridge and in the recesses while leaving the resist; removing the insulating film from the resist so that the resist is exposed while the insulating film in the recess is left; removing the resist exposed; and forming an electrode on the waveguide ridge after removing the resist.Type: ApplicationFiled: March 4, 2009Publication date: September 10, 2009Applicant: Mitsubishi Electric CorporationInventors: Masatsugu Kusunoki, Takafumi Oka
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Patent number: 7585688Abstract: A method for manufacturing a semiconductor optical device includes: forming a first resist pattern on a top surface of a laminated semiconductor structure; forming channels and a waveguide ridge by dry etching using the first resist pattern as a mask; forming an SiO2 film on the waveguide ridge and the channels, leaving the first resist pattern on a top surface of the waveguide ridge; forming a second resist pattern covering the SiO2 film on the channels, and exposing the top surface of the SiO2 film on top of the waveguide ridge; removing the SiO2 film by dry etching using the second resist pattern as a mask; removing the first and second resist patterns by a wet method; and forming a p-side electrode.Type: GrantFiled: February 28, 2008Date of Patent: September 8, 2009Assignee: Mitsubishi Electric CorporationInventors: Takafumi Oka, Shinji Abe
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Publication number: 20090184336Abstract: A semiconductor light emitting device includes: a semiconductor layer; an insulating film on the semiconductor layer and having an opening; a multilayer adhesive layer on the insulating film; and a Pd electrode in contact with the semiconductor layer through the opening and in contact with the multilayer adhesive layer. The multilayer adhesive layer includes an Au layer at the top and an alloy of Au and Pd at the interface between the Au layer and the Pd electrode.Type: ApplicationFiled: July 10, 2008Publication date: July 23, 2009Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takafumi Oka, Shinji Abe, Kazushige Kawasaki, Hitoshi Sakuma
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Publication number: 20090170225Abstract: A method for manufacturing a semiconductor light emitting device includes forming an insulating film on a semiconductor substrate, the insulating film having an opening therein, forming a Pd electrode in the opening and on the insulating film, and removing the portion of the Pd electrode on the insulating film by the application of a physical force to the portion, while leaving the Pd electrode in the opening.Type: ApplicationFiled: December 10, 2008Publication date: July 2, 2009Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takafumi Oka, Masatsugu Kusunoki, Kazushige Kawasaki, Shinji Abe, Hitoshi Sakuma