Patents by Inventor Takeshi Kawamura

Takeshi Kawamura 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).

  • Publication number: 20190383501
    Abstract: A drain pan includes: a drain pan unit that includes a horizontal water receiving unit and a vertical water receiving unit intersecting with each other in an L shape and is used as horizontal and vertical types; and a water discharge socket for discharging, from the drain pan unit, drain water received on the drain pan unit. A drain port is opened through a water-receiving surface of each of the horizontal water receiving unit and the vertical water receiving unit at a corner of intersection of the drain pan unit. The water discharge socket entirely covers the drain port on an outer side of the corner, which is a major angle side.
    Type: Application
    Filed: August 3, 2016
    Publication date: December 19, 2019
    Inventors: Yuki HASEGAWA, Takeshi KAWAMURA
  • Publication number: 20190355662
    Abstract: An upper surface of a plug (PL1) is formed so as to be higher than an upper surface of an interlayer insulating film (PIL) by forming the interlayer insulating film (PIL) on a semiconductor substrate (1S), completing a CMP method for forming the plug (PL1) inside the interlayer insulating film (PIL), and then, making the upper surface of the interlayer insulating film (PIL) to recede. In this manner, reliability of connection between the plug (PL1) and a wiring (W1) in a vertical direction can be ensured. Also, the wiring (W1) can be formed so as not to be embedded inside the interlayer insulating film (PIL), or a formed amount by the embedding can be reduced.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 21, 2019
    Applicant: Renesas Electronics Corporation
    Inventor: Takeshi KAWAMURA
  • Patent number: 10418328
    Abstract: An upper surface of a plug (PL1) is formed so as to be higher than an upper surface of an interlayer insulating film (PIL) by forming the interlayer insulating film (PIL) on a semiconductor substrate (1S), completing a CMP method for forming the plug (PL1) inside the interlayer insulating film (PIL), and then, making the upper surface of the interlayer insulating film (PIL) to recede. In this manner, reliability of connection between the plug (PL1) and a wiring (W1) in a vertical direction can be ensured. Also, the wiring (W1) can be formed so as not to be embedded inside the interlayer insulating film (PIL), or a formed amount by the embedding can be reduced.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: September 17, 2019
    Assignee: Renesas Electronics Corporation
    Inventor: Takeshi Kawamura
  • Publication number: 20180323149
    Abstract: An upper surface of a plug (PL1) is formed so as to be higher than an upper surface of an interlayer insulating film (PIL) by forming the interlayer insulating film (PIL) on a semiconductor substrate (1S), completing a CMP method for forming the plug (PL1) inside the interlayer insulating film (PIL), and then, making the upper surface of the interlayer insulating film (PIL) to recede. In this manner, reliability of connection between the plug (PL1) and a wiring (W1) in a vertical direction can be ensured. Also, the wiring (W1) can be formed so as not to be embedded inside the interlayer insulating film (PIL), or a formed amount by the embedding can be reduced.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Applicant: Renesas Electronics Corporation
    Inventor: Takeshi KAWAMURA
  • Patent number: 10049984
    Abstract: An upper surface of a plug (PL1) is formed so as to be higher than an upper surface of an interlayer insulating film (PIL) by forming the interlayer insulating film (PIL) on a semiconductor substrate (1S), completing a CMP method for forming the plug (PL1) inside the interlayer insulating film (PIL), and then, making the upper surface of the interlayer insulating film (PIL) to recede. In this manner, reliability of connection between the plug (PL1) and a wiring (W1) in a vertical direction can be ensured. Also, the wiring (W1) can be formed so as not to be embedded inside the interlayer insulating film (PIL), or a formed amount by the embedding can be reduced.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 14, 2018
    Assignee: Renesas Electronics Corporation
    Inventor: Takeshi Kawamura
  • Patent number: 9978766
    Abstract: A first tier structure including a first alternating stack of first insulating layers and first sacrificial material layers is formed over a substrate. First support openings and first memory openings are formed through the first tier structure. A dielectric material portion providing electrical isolation from the substrate is formed in each first memory openings. A second tier structure including a second alternating stack of second insulating layers and second sacrificial material layers is formed the first tier structure. Second support openings and second memory openings are formed through the second tier structure above the first support openings and the first memory openings. Memory stack structures are formed in inter-tier openings formed by adjoining the first and second memory openings.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 22, 2018
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Naohiro Hosoda, Takeshi Kawamura, Yoko Furihata, Kota Funayama
  • Publication number: 20180130812
    Abstract: A first tier structure including a first alternating stack of first insulating layers and first sacrificial material layers is formed over a substrate. First support openings and first memory openings are formed through the first tier structure. A dielectric material portion providing electrical isolation from the substrate is formed in each first memory openings. A second tier structure including a second alternating stack of second insulating layers and second sacrificial material layers is formed the first tier structure. Second support openings and second memory openings are formed through the second tier structure above the first support openings and the first memory openings. Memory stack structures are formed in inter-tier openings formed by adjoining the first and second memory openings.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 10, 2018
    Inventors: Naohiro HOSODA, Takeshi KAWAMURA, Yoko FURIHATA, Kota FUNAYAMA
  • Patent number: 9817051
    Abstract: An alternating current loss measuring apparatus for superconductors includes a superconductor specimen, a magnetic field applying coil, a radiation shield, a vacuum vessel, first cooling means, and second cooling means. The first cooling means or the second cooling means is provided with a temperature regulating mechanism. The magnetic field applying means and the radiation shield are set to be a first cooling part, whereas the superconductor specimen is set to be a second cooling part, and the first cooling part and the second cooling part are cooled by first and second cooling means, respectively. A high thermal resistance member is disposed between the superconductor specimen and the second cooling means, and temperature measuring means are disposed at at least two positions on the high thermal resistance member. The alternating current loss of a superconductor under an external magnetic field can be measured at each of different temperatures.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 14, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuhiko Kawakami, Takeshi Kawamura, Manabu Aoki, Yukinobu Imamura
  • Patent number: 9754963
    Abstract: A first tier structure including a first alternating stack of first insulating layers and first sacrificial material layers is formed over a substrate. First support pillar structures are formed through the first tier structure. A second tier structure including a second alternating stack of second insulating layers and second sacrificial material layers is formed over the first tier structure. Memory stack structures and second support pillar structures are formed through the second tier structure. The first and second sacrificial material layers are replaced with first and second electrically conductive layers while the first support pillar structures, the second support pillar structures, and the memory stack structures provide structural support to the first and second insulating layers. By limiting the spatial extent of the first support pillar structures within the first tier structure, electrical short to backside contact via structures can be reduced.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 5, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Takeshi Kawamura, Kota Funayama
  • Patent number: 9728547
    Abstract: Unwanted erosion of dielectric materials around a backside contact trench can be avoided or minimized employing an aluminum oxide liner. An aluminum oxide liner can be formed inside an insulating material layer in a backside contact trench to prevent collateral etching of the insulating material at an upper portion of the backside contact trench during an anisotropic etch that forms an insulating spacer. Alternatively, an aluminum oxide layer can be employed as a backside blocking dielectric layer. An upper portion of the aluminum oxide layer can be converted into an aluminum compound layer including aluminum and a non-metallic element other than oxygen at an upper portion of the trench, and can be employed as a protective layer during formation of a backside contact structure.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: August 8, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Shingo Ohsaki, Hiroshi Kariya, Takuro Maede, Takeshi Kawamura
  • Patent number: 9689938
    Abstract: In a gradient magnetic field coil device including: a plurality of main coils generating in an imaging region of a magnetic field resonance imaging device a magnetic field distribution in which an intensity linearly inclines; and a plurality of shield coils, arranged on an opposite side of the imaging region across the main coils, suppressing residual magnetic field generated by the main coils on the opposite side. The plurality of main coils and the plurality of shield coils are connected in series. The device further includes a plurality of current adjusting devices, connected to the shield coils in parallel, independently adjusting currents flowing through the shield coils, respectively, to enhance symmetry of the residual magnetic field. The gradient magnetic field coil device is provided which can suppress generation of eddy current magnetic field even if there is a relative position deviation between the main coils and shield coils.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 27, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Yukinobu Imamura, Mitsushi Abe, Takeshi Yatsuo, Masanao Terada, Ryuya Ando, Takeshi Kawamura
  • Patent number: 9666622
    Abstract: Provided is a semiconductor integrated circuit device having pixel regions in a photodiode array region and having, in each of the pixel regions, a waveguide holding hole having a substantially perpendicular sidewall above the photodiode and embedded with a silicon oxide-based sidewall insulating film reaching the bottom surface of the hole and two or more silicon nitride-based insulating films having a higher refractive index on the inner side of the hole. This structure makes it possible to prevent deterioration of pixel characteristics of an imaging device, such as CMOS sensor, which is rapidly decreasing in size.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 30, 2017
    Assignee: Renesas Electronics Corporation
    Inventors: Kazuo Tomita, Takeshi Kawamura
  • Patent number: 9618592
    Abstract: A device includes: a static magnetic field generating device including static magnetic field generating sources generating a homogeneous magnetic field in a space; gradient magnetic field generating sources superimposing a gradient magnetic field on the homogeneous magnetic field, and conductor rings arranged between the static magnetic field generating sources and the gradient magnetic field generating sources in a pair of arranging regions on both sides in a direction of the homogeneous magnetic field in a region where the homogeneous magnetic field is generated (imaging region), respectively, the conductor rings being separated from each other and making a pair. The conductor rings are mechanically connected to the gradient magnetic field generating device or the static magnetic field generating device. This provides an MRI device 1 capable of reduction in vibration with suppression of the image quality deterioration of the tomographic images.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: April 11, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Kawamura, Yukinobu Imamura, Mitsushi Abe, Takuro Honda, Hiroyuki Takeuchi
  • Patent number: 9613971
    Abstract: A NAND flash memory array includes a select line having a first edge region containing a first portion of floating gate material and a second edge region containing a second portion of floating gate material, and having a central region between the first edge region and the second edge region where no floating gate material is present.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: April 4, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Masahiro Yaegashi, Kota Funayama, Takeshi Kawamura, Dai Iwata
  • Publication number: 20170025425
    Abstract: A NAND flash memory array includes a select line having a first edge region containing a first portion of floating gate material and a second edge region containing a second portion of floating gate material, and having a central region between the first edge region and the second edge region where no floating gate material is present.
    Type: Application
    Filed: July 24, 2015
    Publication date: January 26, 2017
    Inventors: Masahiro Yaegashi, Kota Funayama, Takeshi Kawamura, Dai Iwata
  • Patent number: 9541088
    Abstract: The present invention relates to an evacuation apparatus for evacuating a vacuum chamber of a substrate processing apparatus for processing a substrate such as a semiconductor wafer or liquid crystal panel. An evacuation apparatus according to the present invention includes a first vacuum pump connected to a vacuum chamber, and a second vacuum pump connected to the first vacuum pump. The first vacuum pump has a pair of multistage pump rotors.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: January 10, 2017
    Assignee: EBARA CORPORATION
    Inventors: Takeshi Kawamura, Koichi Kagawa
  • Publication number: 20160341778
    Abstract: An alternating current loss measuring apparatus for superconductors includes a superconductor specimen, a magnetic field applying coil, a radiation shield, a vacuum vessel, first cooling means, and second cooling means. The first cooling means or the second cooling means is provided with a temperature regulating mechanism. The magnetic field applying means and the radiation shield are set to be a first cooling part, whereas the superconductor specimen is set to be a second cooling part, and the first cooling part and the second cooling part are cooled by first and second cooling means, respectively. A high thermal resistance member is disposed between the superconductor specimen and the second cooling means, and temperature measuring means are disposed at at least two positions on the high thermal resistance member. The alternating current loss of a superconductor under an external magnetic field can be measured at each of different temperatures.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 24, 2016
    Inventors: Tatsuhiko KAWAKAMI, Takeshi KAWAMURA, Manabu AOKI, Yukinobu IMAMURA
  • Publication number: 20160343758
    Abstract: Provided is a semiconductor integrated circuit device having pixel regions in a photodiode array region and having, in each of the pixel regions, a waveguide holding hole having a substantially perpendicular sidewall above the photodiode and embedded with a silicon oxide-based sidewall insulating film reaching the bottom surface of the hole and two or more silicon nitride-based insulating films having a higher refractive index on the inner side of the hole. This structure makes it possible to prevent deterioration of pixel characteristics of an imaging device, such as CMOS sensor, which is rapidly decreasing in size.
    Type: Application
    Filed: August 4, 2016
    Publication date: November 24, 2016
    Inventors: Kazuo TOMITA, Takeshi KAWAMURA
  • Publication number: 20160260670
    Abstract: An upper surface of a plug (PL1) is formed so as to be higher than an upper surface of an interlayer insulating film (PIL) by forming the interlayer insulating film (PIL) on a semiconductor substrate (1S), completing a CMP method for forming the plug (PL1) inside the interlayer insulating film (PIL), and then, making the upper surface of the interlayer insulating film (PIL) to recede. In this manner, reliability of connection between the plug (PL1) and a wiring (W1) in a vertical direction can be ensured. Also, the wiring (W1) can be formed so as not to be embedded inside the interlayer insulating film (PIL), or a formed amount by the embedding can be reduced.
    Type: Application
    Filed: April 6, 2016
    Publication date: September 8, 2016
    Applicant: Renesas Electronics Corporation
    Inventor: Takeshi KAWAMURA
  • Patent number: 9437643
    Abstract: Provided is a semiconductor integrated circuit device having pixel regions in a photodiode array region and having, in each of the pixel regions, a waveguide holding hole having a substantially perpendicular sidewall above the photodiode and embedded with a silicon oxide-based sidewall insulating film reaching the bottom surface of the hole and two or more silicon nitride-based insulating films having a higher refractive index on the inner side of the hole. This structure makes it possible to prevent deterioration of pixel characteristics of an imaging device, such as CMOS sensor, which is rapidly decreasing in size.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: September 6, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Kazuo Tomita, Takeshi Kawamura