Patents by Inventor Katsumi Ito
Katsumi Ito 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: 20120088128Abstract: A safety valve (40, 140, 240, 340) formed in a portion of a case of a sealed battery includes a fracture groove portion (50, 150, 250, 350) formed in a thin portion (42, 142, 242, 342). The thin portion (42, 142, 242, 342) is formed in a horizontally long shape or a vertically long shape that has a curved outer edge portion (45, 145, 245, 345) in which at least a portion of the outer edge portion (43) is curved. This thin portion (42, 142, 242, 342) has a center straight groove portion (60, 160, 260, 360) that extends in the longer direction of the thin portion in the center portion of the thin portion, and a pair of side groove portions (70, 170, 270, 370) that are formed in both side in the longer direction of the center straight groove portion (60, 160, 260, 360) and connected to longer direction end portions (60A, 60B, 160A, 160B, 260A, 260B) of the center straight groove portion.Type: ApplicationFiled: June 2, 2010Publication date: April 12, 2012Inventors: Tomohiro Matsuura, Katsumi Ito, Akira Fujii, Toshihiro Odagaki
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Publication number: 20120052343Abstract: Disclosed is a sealed secondary battery provided with a current cut-off device which employs an inexpensive and uncomplicated construction, without the need to mount a separate current cut-off device on the battery body. A sealed secondary battery (10) comprises a battery casing (11) and a sealing plate (12), an electrode body (21) and current collecting plates (22, 22) provided on the inside of this casing (11). A contact section (11c) formed as part of the bottom (11a) of this battery casing (11) is bowed further inwards towards the negative electrode-side current collecting plate (22b) than the peripheral section of the bottom (11a) of this battery casing (11).Type: ApplicationFiled: March 19, 2010Publication date: March 1, 2012Inventors: Satoshi Suzuki, Katsumi Ito
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Publication number: 20120019175Abstract: The sealed battery has a battery container (4, 5) and a power generating element sealed inside the battery container. The battery container is provided with a fill opening (12), an annular ridge (16), which extends around the entire circumference of the outer face surrounding the fill opening, and an annular indentation (15) on the inside of the inner wall surface of the annular ridge, and has a sealing cap (8), which fits into the annular indentation and covers the fill opening. The sealing cap is joined by being welded to the inner wall surface of the annular ridge around the entire circumference at the edge thereof. Since heat is not well transferred from the inside to the outside of the outer wall surface of the annular ridge, the effective thermal capacity during welding is mostly determined by the structure of the area inside the outer wall surface of the annular ridge. Consequently, the effective thermal capacity is nearly uniform independent of direction.Type: ApplicationFiled: April 13, 2009Publication date: January 26, 2012Inventors: Satoshi Suzuki, Katsumi Ito
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Publication number: 20110241203Abstract: A semiconductor module includes a device mounting board and a semiconductor device. The semiconductor device and the device mounting board are flip-chip connected to each other, and a device electrode provided in the semiconductor device and a substrate electrode provided in the device mounting board are connected by soldering. In a cross section along a line connecting the adjacent substrate electrodes, the width L1 of the substrate electrode is narrower than the width L2 of the device electrode corresponding to the substrate electrode.Type: ApplicationFiled: December 10, 2009Publication date: October 6, 2011Inventors: Mayumi Nakasato, Katsumi Ito, Ryosuke Usui, Yusuke Igarashi
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Publication number: 20110193222Abstract: A semiconductor module manufacturing method includes a step of bonding a semiconductor wafer, which has a plurality of semiconductor elements each of which has an element electrode formed thereon, on an expansible first insulating resin layer; a step of dicing the semiconductor wafer; a step of expanding the first insulating resin layer to widen a gap between semiconductor elements; a pressure-bonding step of pressure-bonding a metal plate whereupon an electrode is arranged and the semiconductor elements with the widened gaps in between, by having a second insulating resin layer in between, and electrically connecting the electrode and the element electrodes; a step of forming a wiring layer which corresponds to each semiconductor element by selectively removing the metal plate and forming a plurality of semiconductor modules connected by the first insulating resin layer and the second insulating resin layer; and a step of separating the semiconductor modules by cutting the first insulating resin layer and thType: ApplicationFiled: March 18, 2009Publication date: August 11, 2011Inventors: Ryosuke Usui, Yasunori Inoue, Mayumi Nakasato, Katsumi Ito
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Publication number: 20100258538Abstract: A case body (a first member) and a cap member (a second member) that have not been subjected to welding include a protrusion consisting of at least one of a first protrusion that protrudes from a first outer surface and a second protrusion that protrudes from a second outer surface when the case body and the cap member are assembled together such that the first outer surface is flush with the second outer surface. The protrusion is placed between the first outer surface and the second outer surface. In a condition where the first outer surface and second outer surface of the pre-welding case body and cap member are flush with each other, and the protrusion is placed between the first outer surface and the second outer surface, the protrusion is irradiated with a laser beam, so that the case body and the cap member are welded together with the protrusion providing a part of a weld.Type: ApplicationFiled: December 9, 2008Publication date: October 14, 2010Inventors: Satoshi Suzuki, Katsumi Ito
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Publication number: 20100248429Abstract: In a method for making a semiconductor module, a bump electrode and a recess are formed by etching a copper sheet. An insulating resin layer is formed, in the recess, up to a position lower than the height of the bump electrode, and then a semiconductor device and the copper sheet, including a wiring layer formed integrally with the bump electrode, are press-bonded together. The wiring layer is warped to protrude toward the semiconductor device, which assures the electrical connection between the bump electrodes and device electrodes.Type: ApplicationFiled: March 19, 2010Publication date: September 30, 2010Inventors: Yoshio OKAYAMA, Katsumi Ito
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Patent number: 7661191Abstract: A manufacturing method of a multilayer substrate that suppresses relative displacement of layers and forms interconnecting portions electrically connecting layers having an accurate positioning. A manufacturing method of a multilayer substrate for laminating, via an insulating film, a wiring layer formed by patterning a conductive film comprises providing a positioning hole in a conductive film laminated at the beginning and patterning a second and/or any subsequent wiring layers after identifying a position of an identification section. Interconnecting sections for interconnecting wiring layers are formed using the identification section.Type: GrantFiled: February 24, 2005Date of Patent: February 16, 2010Assignee: Sanyo Electric Co., Ltd.Inventors: Takeshi Nakamura, Katsumi Ito
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Publication number: 20090201226Abstract: A driving method for a plasma display panel is disclosed in which sustain pulses are alternately applied to a pair of display electrodes of plural discharge cells provided in the plasma display panel to generate a sustain discharge, thereby causing an image to be displayed on the plasma display panel. The sustain pulses include a two-crests discharge voltage waveform having two maximum values in which discharges are generated twice in a half cycle. The driving method includes consecutively applying the two-crests discharge voltage waveforms to the pair of display electrodes; and making a time until the second one of the maximum values of the subsequently applied two-crests discharge voltage waveform is clamped longer than a time until the second one of the maximum values of the initially applied two-crests discharge voltage waveform is clamped.Type: ApplicationFiled: November 12, 2008Publication date: August 13, 2009Inventors: Naoki Itokawa, Katsumi Ito, Masaki Kimura, Junichi Kumagai, Yasunobu Hashimoto, Tomokatsu Kishi
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Publication number: 20090201227Abstract: The plasma display device has a display panel having first and second display electrodes and address electrodes, an electrode drive circuit, and a drive control circuit for controlling the electrode drive circuit. The drive control circuit performs a reset drive control, address drive control and sustain drive control in each subfield. The drive control circuit performs an all cell reset drive control which resets all cells in a first subfield out of the plurality of subfields, and an ON cell reset drive control which resets ON cells in a second subfield. At a first temperature T1, an ultimate potential of an slope pulse of the first display electrode is controlled to be a first potential in the ON cell reset drive control, and at a second temperature T2>T1, the ultimate potential is controlled to be a second potential higher than the first potential.Type: ApplicationFiled: November 25, 2008Publication date: August 13, 2009Inventors: Junichi KUMAGAI, Katsumi Ito
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Publication number: 20090201276Abstract: At an on-cell reset, a positive ramp wave of an ultimate voltage, which is larger than a maximum voltage of a sustain pulse, and smaller than an ultimate voltage of a positive ramp wave applied to a Y electrode at an all-cell reset, is applied to the Y electrode to make a weak discharge occur at a cell where it is non-lighting at a previous sub-field and a wall charge thereof is decreased due to an influence from an adjacent cell, thereby, it makes it possible to return a wall charge state to a normal state, to be capable of lighting a cell to be lighted securely based on a display data.Type: ApplicationFiled: November 25, 2008Publication date: August 13, 2009Inventors: Isao Furukawa, Yasunobu Hashimoto, Tomokatsu Kishi, Katsumi Ito, Takayuki Kobayashi, Shinsuke Tanaka, Makoto Ishii, Junichi Kumagai
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Publication number: 20090196010Abstract: A device mounting board includes: an insulating resin layer; a wiring layer provided on one main surface of the insulating resin layer; and a bump electrode, electrically connected to the wiring layer, which is protruded from the wiring layer toward the insulating resin layer. Asperities are formed on the side surface of the bump electrode and the surface roughness of the side surface of the bump electrode is greater than that of the top surface of the bump electrode.Type: ApplicationFiled: February 2, 2009Publication date: August 6, 2009Inventors: Mayumi NAKASATO, Katsumi ITO
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Publication number: 20090135094Abstract: A plasma display device capable of realizing an interlace drive in one line display and an interlace drive in two lines display by switching thereof without deteriorating display quality, is provided. The interlace drive in one line display and the interlace drive in two lines display are realized such that: the interlace drive in one line display is performed by applying a sustain pulse for even display lines or odd display lines within a plasma display panel in each frame; and the interlace drive in two lines display is performed by applying the sustain pulse while setting the even display lines and the odd display lines adjacent above and below as one set and writing an identical data thereto. In addition, the all-cell reset is performed once per unit time at the interlace drive in two lines display, and an increase of background luminance is prevented by suppressing the increase in the number of times of the all-cell reset in the two lines display.Type: ApplicationFiled: August 4, 2008Publication date: May 28, 2009Inventors: Masayuki Shibata, Katsumi Ito, Naoki Itokawa, Tomonari Misawa
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Publication number: 20090058765Abstract: Between a sustain circuit outputting a sustain pulse and a scan circuit (even) driving a Y electrode of an even display line, there is provided a first switch capable of making the Y electrode of the even display line be in a high impedance state, and between the sustain circuit and a scan circuit (odd) driving a Y electrode of an odd display line, there is provided a second switch capable of making the Y electrode of the odd display line be in the high impedance state. By first and second switches, the Y electrode of the even display line and the Y electrode of the odd display line can be independently controlled to be in the high impedance states, whereby discharge of the even display line can be restrained in a sustain period of an odd frame, while a discharge of the odd display line can be restrained in a sustain period of an even frame, thereby realizing an interlace drive without complicating a circuit configuration.Type: ApplicationFiled: July 31, 2008Publication date: March 5, 2009Inventors: Yasunobu Hashimoto, Masaki Kimura, Tomokatsu Kishi, Katsumi Ito, Naoki Itokawa, Hideaki Ohki
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Patent number: 7495241Abstract: The frequency of replacement of an insulating spacer disposed between grids of an ion beam irradiation apparatus is to be reduced. In addition, the intervals of the multiple grids in the ion beam irradiation apparatus are to be kept constant. To achieve these objects, in a so-called insulating spacer provided for maintaining insulation between the grids, a groove portion having a bottom onto which sputtered materials are hard to adhere is provided on the central portion of the side surface of the insulating spacer all along its circumference.Type: GrantFiled: February 3, 2005Date of Patent: February 24, 2009Assignee: TDK CorporationInventors: Katsumi Ito, Kazuya Maekawa, Etsuo Takeuchi, Nobuo Yajima, Junichi Sato
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Publication number: 20070281459Abstract: A manufacturing method of a multilayer substrate that suppresses relative displacement of layers and forms interconnecting portions electrically connecting layers having an accurate positioning. A manufacturing method of a multilayer substrate for laminating, via an insulating film, a wiring layer formed by patterning a conductive film comprises providing a positioning hole in a conductive film laminated at the beginning and patterning a second and/or any subsequent wiring layers after identifying a position of an identification section. Interconnecting sections for interconnecting wiring layers are formed using the identification section.Type: ApplicationFiled: February 24, 2005Publication date: December 6, 2007Inventors: Takeshi Nakamura, Katsumi Ito
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Publication number: 20050211926Abstract: The frequency of replacement of an insulating spacer disposed between grids of an ion beam irradiation apparatus is to be reduced. In addition, the intervals of the multiple grids in the ion beam irradiation apparatus are to be kept constant. To achieve these objects, in a so-called insulating spacer provided for maintaining insulation between the grids, a groove portion having a bottom onto which sputtered materials are hard to adhere is provided on the central portion of the side surface of the insulating spacer all along its circumference.Type: ApplicationFiled: February 3, 2005Publication date: September 29, 2005Applicant: TDK CorporationInventors: Katsumi Ito, Kazuya Maekawa, Etsuo Takeuchi, Nobuo Yajima, Junichi Sato
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Patent number: 6495950Abstract: A deflection yoke capable of easily adjusting a member having a pair of magnetic pieces by moving the member to a standard state in the case of correcting misconvergence. According to the deflection yoke of the invention, a member having a pair of magnetic pieces disposed in the horizontal deflection direction is attached to an electron gun side of the deflection yoke. The shape of a part of each of ends of the member coincides with a part of the outer shape of the electron gun side of the deflection yoke. The adjusting person can easily set the member into the standard state by adjusting the parts with his/her fingers. By moving the member in the horizontal direction from such a state, misconvergence can be corrected.Type: GrantFiled: March 22, 2000Date of Patent: December 17, 2002Assignee: Sony CorporationInventors: Katsumi Ito, Akihiko Mori, Kazuhiko Endo
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Patent number: 6246590Abstract: In a substrate junction element for reliably connecting the substrates used in a magnetic disk device, wiring substrates electrically connected to the magnetic head are placed on a carriage, and then a main substrate composed of a thin-film substrate and a reinforcing plate is placed on the wiring substrates, whereby it is possible to prevent the wiring substrates from rising. Further, by superimposing the thin-film substrate extending from the main substrate on the wiring substrates, it is possible to prevent generation of a difference in height in the soldering portion.Type: GrantFiled: November 17, 1999Date of Patent: June 12, 2001Assignee: Alps Electric Co., Ltd.Inventors: Takashi Nakai, Katsumi Ito
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Patent number: 5738089Abstract: A system for assisting respiration which includes a flat, belt-shaped, tube made of rubber, and having a valve for introducing air. The flat tube has an outer side comprising a layer of a rubber sheet having a high modulus of elasticity and an inner side comprising a layer of a rubber sheet having a low modulus of elasticity, and is attachable to a part of a lower breast to an upper abdomen portion of a patient for intermittently pressing the part of the lower breast to the upper abdomen portion of the patient responsive to air being introduced into the flat tube. A belt, having a same width as that of the flat tube and a length longer than that of the flat tube, is laminated to the flat tube at the outside of the flat tube, and may have sheet fasteners at both ends thereof.Type: GrantFiled: October 29, 1996Date of Patent: April 14, 1998Assignee: Hiroki HoshiInventors: Hiroki Hoshi, Hajime Kurosawa, Kimito Maeda, Hitomi Iwasa, Go Yurimoto, Satoko Nanzyo, Katsumi Ito