Patents by Inventor Yasunori Kawakami
Yasunori Kawakami 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: 11916112Abstract: An SiC semiconductor device includes an SiC semiconductor layer including an SiC monocrystal and having a first main surface as a device surface, a second main surface at a side opposite to the first main surface, and a side surface connecting the first main surface and the second main surface, a main surface insulating layer including an insulating material, covering the first main surface of the SiC semiconductor layer, and having an insulating side surface continuous to the side surface of the SiC semiconductor layer, and a boundary modified layer including a first region that is modified to be of a property differing from the SiC monocrystal and a second region that is modified to be of a property differing from the insulating material, and being formed across the side surface of the SiC semiconductor layer and the insulating side surface of the main surface insulating layer.Type: GrantFiled: August 8, 2019Date of Patent: February 27, 2024Assignee: ROHM CO., LTD.Inventors: Yasuhiro Kawakami, Yuki Nakano, Masaya Ueno, Seiya Nakazawa, Sawa Haruyama, Yasunori Kutsuma
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Publication number: 20230291774Abstract: According to one embodiment, a telephone number research device researches on the usage status of a telephone number in an IMS network, an NGN network, and an IP network without ringing an incoming call by transmitting a specific SIP message that causes call rejection using an IMS interconnection interface or the like for interconnection between carriers. The telephone number research device is connected via an NGN network to a telephone connected to a destination network that is an IMS network or a VoIP network. The telephone number research device adds a first SDP parameter to an INVITE request for the telephone before sending the request to the destination network selected by the NGN network and determines the usage status of the telephone number of the telephone based on a response from the destination network regardless of the type of the destination network.Type: ApplicationFiled: October 26, 2021Publication date: September 14, 2023Inventor: Yasunori KAWAKAMI
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Patent number: 10545033Abstract: A multi-turn detector is configured to detect an amount of multiple turns of an input shaft using a plurality of resolvers. Each resolver includes a rotor portion and a stator portion. The rotor portion has a rotor core composed of a magnetic flux modulating component. The rotor portion rotates in accordance with rotation of the input shaft at a reduction gear ratio that is different from that of a rotor portion of another resolver. The stator portion has an excitation winding that excites an ac magnetic flux in a direction of an axis of rotation of the rotor portion and two detection windings that output ac signals that are obtained by performing amplitude modulation in accordance with a rotation angle of the rotor portion. The excitation windings and the detection windings of the plurality of resolvers are formed by conductor traces in a common multi-layer printed circuit board.Type: GrantFiled: May 19, 2016Date of Patent: January 28, 2020Assignee: OKUMA CORPORATIONInventors: Yasukazu Hayashi, Koji Kitagawa, Yasunori Kawakami, Hiroaki Matsuura
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Patent number: 10180164Abstract: A resolver for a rotation position detection device comprises a rotor portion having a resin gear having a hole formed at a center portion thereof through which a stationary shaft passes, and a rotor core connected to the resin gear; and a stator portion having the stationary shaft, an excitation wiring and a detection wiring, a back core, and a resin housing, wherein the excitation wiring and the detection wiring are arranged around the stationary shaft at a constant distance from the stationary shaft in a diameter direction, the back core is adjacent to or in contact with the stationary shaft, and the resin gear has a shape whose central portion projects in the shaft direction so as to be in contact with the back core.Type: GrantFiled: September 9, 2016Date of Patent: January 15, 2019Assignee: OKUMA CORPORATIONInventors: Shinji Shibata, Yasunori Kawakami
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Publication number: 20170074681Abstract: A resolver for a rotation position detection device comprises a rotor portion having a resin gear having a hole formed at a center portion thereof through which a stationary shaft passes, and a rotor core connected to the resin gear; and a stator portion having the stationary shaft, an excitation wiring and a detection wiring, a back core, and a resin housing, wherein the excitation wiring and the detection wiring are arranged around the stationary shaft at a constant distance from the stationary shaft in a diameter direction, the back core is adjacent to or in contact with the stationary shaft, and the resin gear has a shape whose central portion projects in the shaft direction so as to be in contact with the back core.Type: ApplicationFiled: September 9, 2016Publication date: March 16, 2017Inventors: Shinji Shibata, Yasunori Kawakami
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Publication number: 20160341574Abstract: A multi-turn detector is configured to detect an amount of multiple turns of an input shaft using a plurality of resolvers. Each resolver includes a rotor portion and a stator portion. The rotor portion has a rotor core composed of a magnetic flux modulating component. The rotor portion rotates in accordance with rotation of the input shaft at a reduction gear ratio that is different from that of a rotor portion of another resolver. The stator portion has an excitation winding that excites an ac magnetic flux in a direction of an axis of rotation of the rotor portion and two detection windings that output ac signals that are obtained by performing amplitude modulation in accordance with a rotation angle of the rotor portion. The excitation windings and the detection windings of the plurality of resolvers are formed by conductor traces in a common multi-layer printed circuit board.Type: ApplicationFiled: May 19, 2016Publication date: November 24, 2016Inventors: Yasukazu HAYASHI, Koji KITAGAWA, Yasunori KAWAKAMI, Hiroaki MATSUURA
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Patent number: 9136737Abstract: Coils are formed into a coil group for a single phase by serially connecting a plurality of coils so that the resulting magnetic flux distribution is a sine wave distribution. The coil group for a single phase is constituted by a plurality of coil sets, formed from two coils that are wound around two adjacent magnetic pole teeth, connected in series. Each coil set includes coils of the two magnetic pole teeth constituting that coil set wound in opposite directions to each other looking from the inside of the stator. An electrical wire extending from an end winding of each coil is turned back so as to run in a direction opposite to an electrical wire connection to a start winding of that coil, and is connected to either a start winding of the next coil or a connection terminal.Type: GrantFiled: May 2, 2012Date of Patent: September 15, 2015Assignee: OKUMA CorporationInventors: Motozumi Yura, Yasunori Kawakami
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Publication number: 20120280678Abstract: Coils are formed into a coil group for a single phase by serially connecting a plurality of coils so that the resulting magnetic flux distribution is a sine wave distribution. The coil group for a single phase is constituted by a plurality of coil sets, formed from two coils that are wound around two adjacent magnetic pole teeth, connected in series. Each coil set includes coils of the two magnetic pole teeth constituting that coil set wound in opposite directions to each other looking from the inside of the stator. An electrical wire extending from an end winding of each coil is turned back so as to run in a direction opposite to an electrical wire connection to a start winding of that coil, and is connected to either a start winding of the next coil or a connection terminal.Type: ApplicationFiled: May 2, 2012Publication date: November 8, 2012Applicant: OKUMA CORPORATIONInventors: Motozumi Yura, Yasunori Kawakami
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Publication number: 20110321076Abstract: A viewing terminal device transmits a viewing information and a comment information fetched using an input processing unit to a server device via a network. To display a video data of a broadcast program, the viewing terminal device issues a request to transmit a viewing statistical information and sends the transmission request to the server device, and receives and displays the viewing statistical information transmitted from the server device in response to the request to transmit the viewing statistical information.Type: ApplicationFiled: August 25, 2011Publication date: December 29, 2011Applicant: Panasonic CorporationInventors: Kou MATSUOKA, Takesi Umeda, Yasunori Kawakami, Yasunori Naruse, Miki Shimizu
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Publication number: 20100304696Abstract: A transmission and reception system includes a transmission apparatus and reception apparatuses. The transmission apparatus transmits a storage identifier for identifying a storage medium and data. The reception apparatuses each include a receiving section for receiving the storage identifier for identifying the storage medium and the data, and a storage control section for storing the data received by the receiving section on the storage medium identified by the storage identifier received by the receiving section. Hence, automatic storage of data conforming to personal taste and simultaneous automatic storage of data for plural persons are realized.Type: ApplicationFiled: June 2, 2010Publication date: December 2, 2010Applicant: PANASONIC CORPORATIONInventors: Takumi IKEDA, Yasunori KAWAKAMI, Tsutomu MIKAMI, Hidekazu TANIGAWA
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Publication number: 20100209079Abstract: In a DVD+VR recording method, when a VCPS (Video Content Protection System) title (204) recorded under protection of its copyright is recorded in a VCPS-incapable apparatus, a dummy title (203) having a protection attribute is provided immediately before the VCPS title, and information about the dummy title is included in title management information for VCPS-incapable apparatuses and information about the VCPS title is not included in the title management information for VCPS-incapable apparatuses. As a result, even when a user tries to perform overwriting from a deleted title immediately before a VCPS title in a VCPS-incapable apparatus, the recording is stopped as the dummy title has the protection attribute, whereby the VCPS title is prevented from being deleted.Type: ApplicationFiled: June 27, 2008Publication date: August 19, 2010Inventors: Masato Kihara, Ken Nagai, Tsuyoshi Yoshii, Miki Shimizu, Chikashi Hayashi, Yasunori Kawakami
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Patent number: 7756512Abstract: A transmission and reception system includes a transmission apparatus and reception apparatuses. The transmission apparatus transmits a storage identifier for identifying a storage medium and data. The reception apparatuses each include a receiving section for receiving the storage identifier for identifying the storage medium and the data, and a storage control section for storing the data received by the receiving section on the storage medium identified by the storage identifier received by the receiving section. Hence, automatic storage of data conforming to personal taste and simultaneous automatic storage of data for plural persons are realized.Type: GrantFiled: June 21, 2007Date of Patent: July 13, 2010Assignee: Panasonic CorporationInventors: Takumi Ikeda, Yasunori Kawakami, Tsutomu Mikami, Hidekazu Tanigawa
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Publication number: 20070244845Abstract: A transmission and reception system includes a transmission apparatus 1 and reception apparatuses 21 and 22. The transmission apparatus 1 transmits a storage identifier for identifying a storage medium and data. The reception apparatuses 21 and 22 each include a receiving section for receiving the storage identifier for identifying the storage medium and the data, and a storage control section for storing the data received by the receiving section on the storage medium identified by the storage identifier received by the receiving section. Hence, automatic storage of data conforming to personal taste and simultaneous automatic storage of data for plural persons are realized.Type: ApplicationFiled: June 21, 2007Publication date: October 18, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Takumi IKEDA, Yasunori KAWAKAMI, Tsutomu MIKAMI, Hidekazu TANIGAWA
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Patent number: 7248832Abstract: A transmission and reception system includes a transmission apparatus 1 and reception apparatuses 21 and 22. The transmission apparatus 1 transmits a storage identifier for identifying a storage medium and data. The reception apparatuses 21 and 22 each include a receiving section for receiving the storage identifier for identifying the storage medium and the data, and a storage control section for storing the data received by the receiving section on the storage medium identified by the storage identifier received by the receiving section. Hence, automatic storage of data conforming to personal taste and simultaneous automatic storage of data for plural persons are realized.Type: GrantFiled: July 25, 2001Date of Patent: July 24, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takumi Ikeda, Yasunori Kawakami, Tsutomu Mikami, Hidekazu Tanigawa
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Publication number: 20020123310Abstract: A transmission and reception system includes a transmission apparatus 1 and reception apparatuses 21 and 22. The transmission apparatus 1 transmits a storage identifier for identifying a storage medium and data. The reception apparatuses 21 and 22 each include a receiving section for receiving the storage identifier for identifying the storage medium and the data, and a storage control section for storing the data received by the receiving section on the storage medium identified by the storage identifier received by the receiving section. Hence, automatic storage of data conforming to personal taste and simultaneous automatic storage of data for plural persons are realized.Type: ApplicationFiled: July 25, 2001Publication date: September 5, 2002Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Takumi Ikeda, Yasunori Kawakami, Tsutomu Mikami, Hidekazu Tanigawa
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Patent number: 6421091Abstract: In a data transmission apparatus for transmitting digital video and audio data, a block forming circuit forms a plurality of data blocks of transmission data composed of at least one of digital video data, digital audio data, and digital auxiliary data related to the digital video data and the digital audio data. Thereafter, a grouping circuit groups a plurality of data blocks outputted from the block forming circuit so as to form transmission group data of one transmission unit block having a time length of approximately one three-hundredth second, and then transmits the transmission group data. Further, a classifying circuit preferably classifies the transmission group data into a plurality of sections, by adding section identification data to each transmission group data.Type: GrantFiled: December 22, 1997Date of Patent: July 16, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasunori Kawakami, Tatsuro Juri
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Patent number: 6368776Abstract: A gas supplied from a gas source is exposed to an atmosphere above a liquid surface in a tank saving the liquid and thereafter is supplied around a wafer in a treatment chamber through a gas supply passage and a supply port. The gas supplied around the wafer uniformly flows from around the wafer toward above the center of the wafer and thereafter is discharged from an exhaust port which is formed at the top of the treatment chamber. Meanwhile, with respect to the wafer, heat treatment is performed by a heating mechanism and a predetermined PEB is carried out. The humidified gas is supplied into the treatment chamber, thereby preventing drying in the treatment chamber. Therefore, water in resist is not taken out, resulting in that a required resist pattern can be formed on the wafer.Type: GrantFiled: March 17, 1999Date of Patent: April 9, 2002Assignee: Tokyo Electron LimitedInventors: Koji Harada, Junichi Nagata, Yasunori Kawakami, Masatoshi Kaneda, Norio Semba, Yoshio Kimura, Masami Akimoto, Yasuhiro Sakamoto, Nobuyuki Jinnai
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Patent number: 6308183Abstract: The present invention relates to a method to handle dummy blocks without real data in a file management system. More specifically, block allocation means 30 is provided with a function of counting the number of dummy blocks without real data when there is a request to write new data at a file offset address one or more blocks away from the last file offset On in a specific file, and the unoccupied block management means 40 is additionally given a function of managing the number of unoccupied blocks subtracting the number of dummy blocks from the number of unoccupied blocks. That always leaves the number of unoccupied blocks with the number of the necessary blocks subtracted therefrom. The blocks necessary for later writing can be secured.Type: GrantFiled: September 10, 1998Date of Patent: October 23, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasunori Kawakami, Hiroshi Taniyama
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Patent number: 6182088Abstract: The present invention relates to a file system using a disc memory storage and a method of managing the file system. Just like the ordinary server, a first block table Tb1 with the offset number of the file to be written in matched with the block number Dij of the data block is provided, and the data stored in the memory is read out on the basis of the contents of the first block table Tb1. On that file system, a second block registering means is provided which couples the block number allotted to the file to write and the offset number and, in case of consecutive block numbers, prepares a second block table Tb2 in which the first block number of the consecutive block numbers is paired with the offset number. A second take-out means is also provided. When consecutive data are to be read out, the second block take-out means arithmetically processes, on the basis of the contents of the second block table Tb2, the block numbers Dij to be read out and hands over the results to the data read-out means.Type: GrantFiled: April 27, 1998Date of Patent: January 30, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasunori Kawakami, Hiroshi Taniyama
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Patent number: 6118930Abstract: When modulating by an interleaved NRZI technique by inserting one bit per every m bits of input data series, the frequency characteristics of bit rows varying by the polarity ("0" or "1") of the bit to be inserted are compared, and the bit row closer to the desired frequency characteristic is selected as the output series, so that recording is effected by controlling the frequency characteristics of the digital signal.Type: GrantFiled: January 12, 1998Date of Patent: September 12, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shinji Hamai, Masao Okabe, Yasunori Kawakami