Patents by Inventor Yohei Koyanagi
Yohei Koyanagi 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: 20220307724Abstract: An air-conditioning apparatus includes a heat-source detection unit provided at the front of a housing. The heat-source detection unit includes an infrared sensor that detects a heat source in an air-conditioned space and a supporting member that supports the infrared sensor. The supporting member is rotated about an axis that extends in a vertical direction. Part of the infrared sensor that corresponds to the field of view thereof is exposed when the infrared sensor faces the air-conditioned space, and the part of the infrared sensor is concealed when the infrared sensor does not face the air-conditioned space.Type: ApplicationFiled: August 8, 2019Publication date: September 29, 2022Inventors: Masayuki OISHI, Hiroshi HIROSAKI, Yohei KOYANAGI, Kazuki NAGAI
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Publication number: 20220116527Abstract: An imaging device capable of detecting an attitude of a display unit with respect to a body unit is miniaturized. Therefore, an imaging device includes: a display support unit configured to support a display unit that displays an image captured by a body unit; a first arm unit of which one end is connected to the display support unit; a first magnet provided in one of the display support unit and the first arm unit; and a first magnetic sensor provided in the other of the display support unit and the first arm unit. A pivoting state of the display support unit and the first arm unit is variable using a first pivoting axis as a support point axis. The first magnetic sensor receives a magnetic field released from the first magnet and outputs a signal in accordance with the pivoting state of the display support unit and the first arm unit.Type: ApplicationFiled: December 24, 2019Publication date: April 14, 2022Inventors: GENKI YUZAWA, YOHEI KOYANAGI, SHINJI SHIBA, TAIKI UNO, HIROYUKI YOSHIDA
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Patent number: 10982878Abstract: An indoor unit of an air-conditioning apparatus includes: a heat exchanger which generates conditioned air by carrying out heat exchange between refrigerant and indoor air; and a drain pan disposed below a lower end of the heat exchanger to correct dew condensation water. The drain pan includes at a side portion thereof: a side dew receiving portion which receives dew condensation water; and a recessed portion disposed below the side dew receiving portion, the recessed portion being recessed toward an other side portion opposite to the side portion. A side face of the drain pan is provided with a heat insulating sheet covering an entire opening of the recessed portion.Type: GrantFiled: April 14, 2017Date of Patent: April 20, 2021Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Hayashi, Kazuhito Kojima, Hiroshi Omura, Shuichi Kuroki, Yohei Koyanagi, Takuya Niimura, Katsuya Ishigami, Den Ozaki
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Patent number: 10666308Abstract: A communication-adapter mounting device is used for mounting a communication adapter that relays communication between an air-conditioning apparatus and another apparatus. The communication-adapter mounting device includes a body into which the communication adapter is to be accommodated and from which the communication adapter is allowed to be removed, and a clip to mount the body to a housing of the air-conditioning apparatus. A mounting plate of the body includes a mounting hole for securing the communication-adapter mounting device to an installation location in which to install the communication adapter. Further, the body has a clip holding mechanism to hold the clip and to allow the clip to be removed.Type: GrantFiled: January 20, 2017Date of Patent: May 26, 2020Assignee: Mitsubishi Electric CorporationInventors: Den Ozaki, Kazuhito Kojima, Hiroshi Omura, Shuichi Kuroki, Yohei Koyanagi, Takuya Niimura, Katsuya Ishigami, Tsuyoshi Hayashi
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Publication number: 20200067556Abstract: A communication-adapter mounting device is used for mounting a communication adapter that relays communication between an air-conditioning apparatus and another apparatus. The communication-adapter mounting device includes a body into which the communication adapter is to be accommodated and from which the communication adapter is allowed to be removed, and a clip to mount the body to a housing of the air-conditioning apparatus. A mounting plate of the body includes a mounting hole for securing the communication-adapter mounting device to an installation location in which to install the communication adapter. Further, the body has a clip holding mechanism to hold the clip and to allow the clip to be removed.Type: ApplicationFiled: January 20, 2017Publication date: February 27, 2020Inventors: Den OZAKI, Kazuhito KOJIMA, Hiroshi OMURA, Shuichi KUROKI, Yohei KOYANAGI, Takuya NIIMURA, Katsuya ISHIGAMI, Tsuyoshi HAYASHI
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Publication number: 20200033024Abstract: An indoor unit of an air-conditioning apparatus includes: a heat exchanger which generates conditioned air by carrying out heat exchange between refrigerant and indoor air; and a drain pan disposed below a lower end of the heat exchanger to correct dew condensation water. The drain pan includes at a side portion thereof: a side dew receiving portion which receives dew condensation water; and a recessed portion disposed below the side dew receiving portion, the recessed portion being recessed toward an other side portion opposite to the side portion. A side face of the drain pan is provided with a heat insulating sheet covering an entire opening of the recessed portion.Type: ApplicationFiled: April 14, 2017Publication date: January 30, 2020Inventors: Tsuyoshi HAYASHI, Kazuhito KOJIMA, Hiroshi OMURA, Shuichi KUROKI, Yohei KOYANAGI, Takuya NIIMURA, Katsuya ISHIGAMI, Den OZAKI
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Patent number: 8582248Abstract: A MR sensor comprises a first shielding layer, a second shielding layer, a MR element and a pair of hard magnet layers sandwiched therebetween, and a non-magnetic insulating layer formed at a side of the MR element far from an air bearing surface of a slider. The MR sensor further comprises a first non-magnetic conducting layer formed between the first shielding layer and the MR element, and the first non-magnetic conducting layer is embedded in the first shielding layer and kept separate from the ABS. The MR sensor of the invention can obtain a narrower read gap to increase the resolution power and improve the reading performance, and obtain a strong longitudinal bias field to stabilize the MR sensor so as to increase the total sensor area and, in turn, get an improved reliability and performance. The present invention also discloses a magnetic head, a HGA and a disk drive unit.Type: GrantFiled: January 6, 2011Date of Patent: November 12, 2013Assignees: SAE Magnetics (H.K.) Ltd., TDK CorporationInventors: Chiuming Lueng, Kazuki Sato, Yohei Koyanagi, Cheukwing Leung, Juren Ding, Rongkwang Ni, Wanyin Kwan, Siuman Mok
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Patent number: 8427790Abstract: A thin film magnetic head includes a magnetoresistive element having a recording-medium-facing-surface which is to be faced with a magnetic recording medium; a magnetic bias layer located on a side opposite to the recording-medium-facing-surface of the magnetoresistive element, and applying a bias magnetic field to the magnetoresistive element in a direction orthogonal to the recording-medium-facing-surface; and a resistive film pattern having the recording-medium-facing-surface, the resistive film pattern being located side by side with the magnetoresistive element in a track-width direction.Type: GrantFiled: June 30, 2008Date of Patent: April 23, 2013Assignee: TDK CorporationInventors: Kei Hirata, Kazuki Sato, Yohei Koyanagi, Takayasu Kanaya, Takeo Kagami
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Publication number: 20120099227Abstract: A MR sensor comprises a first shielding layer, a second shielding layer, a MR element and a pair of hard magnet layers sandwiched therebetween, and a non-magnetic insulating layer formed at a side of the MR element far from an air bearing surface of a slider. The MR sensor further comprises a first non-magnetic conducting layer formed between the first shielding layer and the MR element, and the first non-magnetic conducting layer is embedded in the first shielding layer and kept separate from the ABS. The MR sensor of the invention can obtain a narrower read gap to increase the resolution power and improve the reading performance, and obtain a strong longitudinal bias field to stabilize the MR sensor so as to increase the total sensor area and, in turn, get an improved reliability and performance. The present invention also discloses a magnetic head, a HGA and a disk drive unit.Type: ApplicationFiled: January 6, 2011Publication date: April 26, 2012Applicant: SAE Magnetics (H.K.) Ltd.Inventors: Chiuming Lueng, Kazuki Sato, Yohei Koyanagi, Cheukwing Leung, Juren Ding, Rongkwang Ni, Wanyin Kwan, Siuman Mok
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Patent number: 8009392Abstract: Foundation layers of a thin film magnetic head are disposed between insulating layers and bias magnetic field application layers, and are configured of Cr or Cr alloy. The insulating layers are configured of a Si oxide such that the Si content of the Si oxide is in the range of 30˜56 at % (atom %) and that the atom ratio of oxygen to Si (O/Si) is in the range of 0.8˜1.3. With the configuration, the occurrence rate of noise is reduced.Type: GrantFiled: January 13, 2009Date of Patent: August 30, 2011Assignee: TDK CorporationInventors: Takayasu Kanaya, Kei Hirata, Yohei Koyanagi, Seiichi Takayama, Shinji Hara, Toshiyuki Ayukawa
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Patent number: 7810226Abstract: A manufacturing method of a thin-film element having a lower layer with a narrower width is provided, which comprises steps of: forming a first film and a second film on the first film; forming a second layer having a width WUP obtained by trimming the second film; forming a mask film having a smaller etching rate than the first film so as to cover the second layer; forming a pattern having a width WTR larger than the width WUP, obtained by collectively trimming the mask film covering the second layer and at least an upper portion of the first film; and forming a first layer having a width WLO smaller than the width WUP or having a portion with a width WLO smaller than the width WUP, obtained by trimming the first film without changing the width WUP of the second layer.Type: GrantFiled: March 19, 2007Date of Patent: October 12, 2010Assignee: TDK CorporationInventors: Hiraku Hirabayashi, Yohei Koyanagi
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Publication number: 20100177440Abstract: Foundation layers of a thin film magnetic head are disposed between insulating layers and bias magnetic field application layers, and are configured of Cr or Cr alloy. The insulating layers are configured of a Si oxide such that the Si content of the Si oxide is in the range of 30˜56 at % (atom %) and that the atom ratio of oxygen to Si (O/Si) is in the range of 0.8˜1.3. With the configuration, the occurrence rate of noise is reduced.Type: ApplicationFiled: January 13, 2009Publication date: July 15, 2010Applicant: TDK CORPORATIONInventors: Takayasu Kanaya, Kei Hirata, Yohei Koyanagi, Seiichi Takayama, Shinji Hara, Toshiyuki Ayukawa
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Publication number: 20090323222Abstract: In manufacturing the thin film magnetic head, the rear end face of the MR element and the rear end face of a resistive film pattern are determined with high precision using a mask pattern, in which a first opening and a second opening are collectively formed. The first and second openings are located side by side in a track-width direction. The first opening includes a first edge extending across the MR film in the track-width direction, and the second opening includes a second edge located at a given interval, as measured in a direction orthogonal to the track-width direction, from the first edge, and extending in the track-width direction. In the step of polishing for forming a magnetic-recording-medium-facing-surface, the amount of polishing is determined by monitoring the resistance change of the resistive film pattern, thereby reducing the dimension errors in the MR height when manufacturing the MR element.Type: ApplicationFiled: June 30, 2008Publication date: December 31, 2009Applicant: TDK CORPORATIONInventors: Kei Hirata, Kazuki Sato, Yohei Koyanagi, Takayasu Kanaya, Takeo Kagami
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Publication number: 20070223140Abstract: A manufacturing method of a thin-film element having a lower layer with a narrower width is provided, which comprises steps of: forming a first film and a second film on the first film; forming a second layer having a width WUP obtained by trimming the second film; forming a mask film having a smaller etching rate than the first film so as to cover the second layer; forming a pattern having a width WTR larger than the width WUP, obtained by collectively trimming the mask film covering the second layer and at least an upper portion of the first film; and forming a first layer having a width WLO smaller than the width WUP or having a portion with a width WLO smaller than the width WUP, obtained by trimming the first film without changing the width WUP of the second layer.Type: ApplicationFiled: March 19, 2007Publication date: September 27, 2007Applicant: TDK CorporationInventors: Hiraku Hirabayashi, Yohei Koyanagi