Patents by Inventor Tsutomu Tatekawa
Tsutomu Tatekawa 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).
-
Patent number: 11400867Abstract: A unit chassis of an operation unit is fixed to a coupling support portion provided at a support member. A front contact portion is formed at a fixing piece provided at the coupling support portion, and a front restriction portion formed at a right plate portion of the support member and the front contact portion face each other to be spaced apart by a distance in the front-rear direction (Z1-Z2 direction). When the operation unit is pulled toward the near side (Z1 direction), the front contact portion comes into contact with the front restriction portion and restricts a movement of the operation unit.Type: GrantFiled: April 30, 2021Date of Patent: August 2, 2022Assignee: ALPS ALPINE CO., LTD.Inventor: Tsutomu Tatekawa
-
Publication number: 20210380044Abstract: A unit chassis of an operation unit is fixed to a coupling support portion provided at a support member. A front contact portion is formed at a fixing piece provided at the coupling support portion, and a front restriction portion formed at a right plate portion of the support member and the front contact portion face each other to be spaced apart by a distance in the front-rear direction (Z1-Z2 direction). When the operation unit is pulled toward the near side (Z1 direction), the front contact portion comes into contact with the front restriction portion and restricts a movement of the operation unit.Type: ApplicationFiled: April 30, 2021Publication date: December 9, 2021Applicant: ALPS ALPINE CO., LTD.Inventor: Tsutomu Tatekawa
-
Patent number: 10416459Abstract: An HUD apparatus is structured such that a first cover moves forward to open a first opening, which is disposed on a path along which a combiner moves, and a second cover also moves forward to open a second opening, which is disposed on an optical path from a light-projecting portion of a light-emitting unit (second mirror) to the combiner. When the combiner moves from an accommodated position to a projecting position, a front end portion of the second cover moves into a space that is occupied by the combiner when the combiner is at the accommodated position.Type: GrantFiled: January 6, 2017Date of Patent: September 17, 2019Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Tsutomu Tatekawa
-
Publication number: 20170242257Abstract: An HUD apparatus is structured such that a first cover moves forward to open a first opening, which is disposed on a path along which a combiner moves, and a second cover also moves forward to open a second opening, which is disposed on an optical path from a light-projecting portion of a light-emitting unit (second minor) to the combiner. When the combiner moves from an accommodated position to a projecting position, a front end portion of the second cover moves into a space that is occupied by the combiner when the combiner is at the accommodated position.Type: ApplicationFiled: January 6, 2017Publication date: August 24, 2017Applicant: ALPINE ELECTRONICS, INC.Inventor: Tsutomu Tatekawa
-
Publication number: 20170227769Abstract: A HUD apparatus is structured such that a first cover opens and closes a first opening, which is disposed on a path along which a combiner moves, and a second cover opens and closes a second opening, which is disposed in an optical path from a light-projecting portion of a light-emitting unit (second mirror) to the combiner. When the combiner is being moved from an accommodated position to a projecting position, the second cover retracts into a space between the combiner and the light-projecting portion while rotating forward, similarly to the first cover.Type: ApplicationFiled: January 6, 2017Publication date: August 10, 2017Applicant: ALPINE ELECTRONICS, INC.Inventors: Tsutomu Tatekawa, Takehide Yamano
-
Patent number: 8476179Abstract: A grain boundary-insulated semiconductor ceramic contains a SrTiO3-based compound as a main component, and a diffusing agent containing a grain boundary insulating agent and a glass component. The grain boundary insulating agent is composed of a material free of lead, the glass component mainly contains a SiO2—X2O-MO—TiO2-based glass material that does not contain boron or lead and in which X represents an alkali metal, and M represents at least one of barium, strontium, and calcium, and the content of the glass component is 3 to 15 parts by weight relative to 100 parts by weight of the grain boundary insulating agent. A component base is composed of the grain boundary-insulated semiconductor ceramic.Type: GrantFiled: January 26, 2012Date of Patent: July 2, 2013Assignee: Murata Manufacturing Co., Ltd.Inventor: Tsutomu Tatekawa
-
Patent number: 8361918Abstract: To provide a ceramic composition not only having little compositional variation after burning, but a high flexural strength of the sintered body, and a high Q value in a microwave band, a ceramic composition used for forming a ceramic layer of a multi-layer ceramic substrate contains 47.0 to 67.0 wt. % of SiO2, 21.0 to 41.0 wt. % of BaO, and 10.0 to 18.0 wt. % of Al2O3, and contains as a first additive, 1.0 to 5.0 parts by weight of CeO2, relative to a total of 100 parts of SiO2, BaO and Al2O3, and as a second additive, 2.5 to 5.5 parts by weight of MnO, relative to a total of 100 parts by weight of SiO2, BaO, Al2O3 and CeO2, and is substantially free of Cr. As a third additive, at least one of Zr, Ti, Zn, Nb, Mg and Fe, and as a fourth additive, a Co component and/or a V component, may be contained.Type: GrantFiled: February 16, 2010Date of Patent: January 29, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Machiko Motoya, Tsutomu Tatekawa, Jun Urakawa, Tsuyoshi Katsube, Yoichi Moriya
-
Publication number: 20120217615Abstract: A grain boundary-insulated semiconductor ceramic contains a SrTiO3-based compound as a main component, and a diffusing agent containing a grain boundary insulating agent and a glass component. The grain boundary insulating agent is composed of a material free of lead, the glass component mainly contains a SiO2—X2O-MO—TiO2-based glass material that does not contain boron or lead and in which X represents an alkali metal, and M represents at least one of barium, strontium, and calcium, and the content of the glass component is 3 to 15 parts by weight relative to 100 parts by weight of the grain boundary insulating agent. A component base is composed of the grain boundary-insulated semiconductor ceramic.Type: ApplicationFiled: January 26, 2012Publication date: August 30, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventor: Tsutomu Tatekawa
-
Patent number: 7921434Abstract: When a normal disk having the diameter of 12 cm is inserted into the disk device, first and second optical detecting elements detect the insertion, and transitions to a first detection state, which initiates transfer operation of first and second transfer rollers. If the disk is further moved to an inner portion of the device, thus pressing first and second detecting pins, first and second detecting switches are turned OFF, and the detecting elements enter a second detection state. Before the transition from the first detection state to the second detection state occurs, a rotating speed of the first and second transfer rollers is set low. After transition to the second detection state, the rotating speed is increased. As a result, a card or other such foreign objects can be removed and a monitoring period can be increased until detection of a normal disk is detected.Type: GrantFiled: March 27, 2009Date of Patent: April 5, 2011Assignees: Alpine Electronics, Inc., Toshiba Alpine Automotive Technology, Inc.Inventors: Tsutomu Tatekawa, Tokio Suzuki, Ichiro Kato, Hiroshi Kawase, Yusuke Yoshida, Nobunori Kudou, Yousuke Kuno
-
Publication number: 20100139957Abstract: To provide a ceramic composition not only having little compositional variation after burning, but a high flexural strength of the sintered body, and a high Q value in a microwave band, a ceramic composition used for forming a ceramic layer of a multi-layer ceramic substrate contains 47.0 to 67.0 wt. % of SiO2, 21.0 to 41.0 wt. % of BaO, and 10.0 to 18.0 wt. % of Al2O3, and contains as a first additive, 1.0 to 5.0 parts by weight of CeO2, relative to a total of 100 parts of SiO2, BaO and Al2O3, and as a second additive, 2.5 to 5.5 parts by weight of MnO, relative to a total of 100 parts by weight of SiO2, BaO, Al2O3 and CeO2, and is substantially free of Cr. As a third additive, at least one of Zr, Ti, Zn, Nb, Mg and Fe, and as a fourth additive, a Co component and/or a V component, may be contained.Type: ApplicationFiled: February 16, 2010Publication date: June 10, 2010Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Machiko MOTOYA, Tsutomu Tatekawa, Jun Urakawa, Tsuyoshi Katsube, Yoichi Moriya
-
Patent number: 7716691Abstract: A disk-storing disk device includes a mechanism base provided at a position beyond the perimeter of a disk stored in a disk storing region provided vertically within a middle portion of a casing, and a switchover member which moves following an arc path is provided on the mechanism base. Switching operations of various types of mechanisms can be performed by this switchover member. Also, other switchover members can be disposed vertically overlapping the mechanism base. Accordingly, the vertical movement region for holding disks can be made larger, and also, the planar area of the casing can be reduced. This allows a greater number of disks to be stored within the casing, while reducing the size of the casing.Type: GrantFiled: September 29, 2006Date of Patent: May 11, 2010Assignee: Alpine Electronics, Inc.Inventor: Tsutomu Tatekawa
-
Publication number: 20090265727Abstract: When a normal disk having the diameter of 12 cm is inserted into the disk device, first and second optical detecting elements detect the insertion, and transitions to a first detection state, which initiates transfer operation of first and second transfer rollers. If the disk is further moved to an inner portion of the device, thus pressing first and second detecting pins, first and second detecting switches are turned OFF, and the detecting elements enter a second detection state. Before the transition from the first detection state to the second detection state occurs, a rotating speed of the first and second transfer rollers is set low. After transition to the second detection state, the rotating speed is increased. As a result, a card or other such foreign objects can be removed and a monitoring period can be increased until detection of a normal disk is detected.Type: ApplicationFiled: March 27, 2009Publication date: October 22, 2009Applicants: Alpine Electronics, Inc., Toshiba Alpine Automotive Technology,Inc.Inventors: Tsutomu Tatekawa, Tokio Suzuki, Ichiro Kato, Hiroshi Kawase, Yusuke Yoshida, Nobunori Kodou, Yousuke Kuno
-
Patent number: 7472403Abstract: In a disk-storing disk device according to the present invention, within a casing having an insertion opening formed on the front face for inserting a disk, a plurality of holders are arranged in piles disproportionately on the X1 side about an insertion center line while a drive unit is rotatably supported on the X2 side from the insertion center line. When any of the holders is selected and a disk is inserted through the insertion opening, the disk is clamped to transfer rollers. A transporting unit is counterclockwise rotated while the disk is transferred with the transfer rollers. By the rotation, the disk is securely conveyed to the holder arranged disproportionately on the X1 side. Thereby, efficiency of arranging respective units in the casing is improved so as to provide a disk-storing disk device with short depth size.Type: GrantFiled: March 21, 2006Date of Patent: December 30, 2008Assignee: Alpine Electronics, Inc.Inventors: Tsutomu Tatekawa, Shoji Suzuki, Tokio Suzuki
-
Patent number: 7472404Abstract: A disk device according to the present invention includes a transporting unit having a transfer roller within a casing. The transfer roller is rotatable about a fulcrum shaft. An integral gear is rotatably provided in the fulcrum shaft. The power of a motor fixed in the casing is transmitted to a worm wheel of the transporting unit via the integral gear and is further transmitted to a roller gear. Therefore, by the rotation on its own axis of the transfer roller and the rotating operation of the entire transporting unit, a disk is conveyed.Type: GrantFiled: March 21, 2006Date of Patent: December 30, 2008Assignee: Alpine Electronics, Inc.Inventors: Tsutomu Tatekawa, Yusuke Yoshida
-
Patent number: 7418724Abstract: A disk changer apparatus includes a rotation base on which a turntable and a head are mounted. The rotation base can rotate about the rear end thereof as a fulcrum. The disk changer apparatus further includes a base supporter opposed to the top end of the rotation base when the rotation base moves to a driving position where the rotation base can drive a disk selected from a plurality of disks, a lock member movably mounted on the rotation base, and a lock control mechanism for causing the lock member to be connected to the base supporter when the rotation base moves to the driving position. The disk changer apparatus having such a structure stably supports both ends of the rotation base when the rotation base rotates to the driving position.Type: GrantFiled: May 6, 2005Date of Patent: August 26, 2008Assignee: Alpine Electronics, Inc.Inventors: Tsutomu Tatekawa, Tokio Suzuki
-
Patent number: 7339858Abstract: A disk device includes a disk tray capable of accommodating disks by stacking; a first driving motor for transferring the disk tray in the disk-stacking direction; a driving unit including an optical head for reading out data recorded in the disks, and a supporting component for supporting the rotation of the disks; a second driving motor for selectively transferring the driving unit between a playback position where the driving unit overlaps with the disks in the disk-stacking direction and a retracted position where the driving unit does not overlap with the disks in the disk-stacking direction; disk detectors for determining whether the disk tray accommodates disks at predetermined positions; and a controlling section for transferring the disk tray in the disk-stacking direction while the driving unit is kept at the playback position when the disk tray does not accommodate disks at predetermined positions on the basis of detection results of the disks during disk checks.Type: GrantFiled: July 27, 2005Date of Patent: March 4, 2008Assignee: Alpine Electronics, Inc.Inventor: Tsutomu Tatekawa
-
Publication number: 20070076538Abstract: A disk-storing disk device includes a mechanism base provided at a position beyond the perimeter of a disk stored in a disk storing region provided vertically within a middle portion of a casing, and a switchover member which moves following an arc path is provided on the mechanism base. Switching operations of various types of mechanisms can be performed by this switchover member. Also, other switchover members can be disposed vertically overlapping the mechanism base. Accordingly, the vertical movement region for holding disks can be made larger, and also, the planar area of the casing can be reduced. This allows a greater number of disks to be stored within the casing, while reducing the size of the casing.Type: ApplicationFiled: September 29, 2006Publication date: April 5, 2007Inventor: Tsutomu Tatekawa
-
Publication number: 20060215502Abstract: In a disk-storing disk device according to the present invention, within a casing having an insertion opening formed on the front face for inserting a disk, a plurality of holders are arranged in piles disproportionately on the X1 side about an insertion center line while a drive unit is rotatably supported on the X2 side from the insertion center line. When any of the holders is selected and a disk is inserted through the insertion opening, the disk is clamped to transfer rollers. A transporting unit is counterclockwise rotated while the disk is transferred with the transfer rollers. By the rotation, the disk is securely conveyed to the holder arranged disproportionately on the X1 side. Thereby, efficiency of arranging respective units in the casing is improved so as to provide a disk-storing disk device with short depth size.Type: ApplicationFiled: March 21, 2006Publication date: September 28, 2006Inventors: Tsutomu Tatekawa, Shoji Suzuki, Tokio Suzuki
-
Publication number: 20060215503Abstract: A disk device according to the present invention includes a transporting unit having a transfer roller within a casing. The transfer roller is rotatable about a fulcrum shaft. An integral gear is rotatably provided in the fulcrum shaft. The power of a motor fixed in the casing is transmitted to a worm wheel of the transporting unit via the integral gear and is further transmitted to a roller gear. Therefore, by the rotation on its own axis of the transfer roller and the rotating operation of the entire transporting unit, a disk is conveyed.Type: ApplicationFiled: March 21, 2006Publication date: September 28, 2006Inventors: Tsutomu Tatekawa, Yusuke Yoshida
-
Patent number: 7056852Abstract: A high-frequency dielectric ceramic composition that has a high Q-factor as well as a large relative dielectric constant, and in which temperature coefficient of the resonant frequency (?r) can be controlled to around 0 ppm/° C. is provided. The dielectric ceramic composition has a general formula of Ba[(Sn?Zr1-?)xMgy(Nb?Ta1-?)z]vOw, wherein molar ratios x, y, and z are within an area defined by points A (0.30, 0.22, 0.48), B (0.60, 0.12, 0.28), C (0.60, 0.14, 0.26), and D (0.30, 0.25, 0.45) in a ternary diagram, and are not on the line between points A and D, x+y+z=1.00, 0.5???1.0, 0???1.0, 0.98?v?1.03, and w is a positive value to keep the composition electroneutral.Type: GrantFiled: April 5, 2004Date of Patent: June 6, 2006Assignee: Murata Manufacturing Co., Ltd.Inventor: Tsutomu Tatekawa