Patents by Inventor Masaru Matsui

Masaru Matsui 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: 10807180
    Abstract: A base material is welded by a first welding method in a case where a welding parameter related to heat input to the base material is less than a first threshold value. The base material is welded by a second welding method in a case where the welding parameter is less than a second threshold value and is more than the first threshold value. The base material is welded by a third welding method in a case where the welding parameter is more than the second threshold value. By adjusting welding conditions regardless of the thickness of the base material, a welding method suitable for the thickness of the base material is determined to provide a welding with little spatter and no meltdown of the base material.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: October 20, 2020
    Assignee: PANASONIC INTELLETUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Atsuhiro Kawamoto, Kaito Matsui, Masaru Kowa, Takahiro Noguchi, Masashi Fujiwara
  • Publication number: 20200270142
    Abstract: The invention provides a method for producing titanium hydroxide comprising: a step A of obtaining titanium hydroxide having a BET specific surface area of 300 m2/g or more and a crystallite diameter of 20 ? or more by simultaneously neutralizing an aqueous solution of titanium halide and an alkaline substance under the conditions of pH in the range of 4.8 to 5.2 and a temperature in the range of 40 to 55° C.; and a step C of washing the titanium hydroxide with water, dispersing the titanium hydroxide in water to obtain a slurry containing the titanium hydroxide, adding to the slurry (a) a phosphorus compound in an amount of 1.0 to 5.0% by weight or a silicon compound in an amount of 2.0 to 5.0% by weight, or (b) a phosphorus compound and a silicon compound in an amount of 1.0 to 5.0% by weight in total, wherein each of the amounts is relative to the weight of the titanium hydroxide in terms of titanium oxide (TiO2), and washing the resulting slurry with water, and drying the slurry.
    Type: Application
    Filed: October 29, 2018
    Publication date: August 27, 2020
    Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Shuhei MOCHIDA, Kotonaga MATSUI, Masaru MIKAMI, Takashi YAMAMOTO, Nobuo WATANABE
  • Patent number: 10665516
    Abstract: The present invention relates to an etching method including a reaction layer forming step of forming a reaction layer by adsorption of a gas on a surface of an etching target material, a desorption step of desorbing the reaction layer after the reaction layer forming step, and a removal step of removing the reaction layer or a deposited film, characterized in that the surface of the etching target material is etched by the reaction layer forming step and the desorption step.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: May 26, 2020
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Miyako Matsui, Kenichi Kuwahara, Naoki Yasui, Masaru Izawa, Tatehito Usui, Takeshi Ohmori
  • Patent number: 10622269
    Abstract: The present invention relates to an etching method including a reaction layer forming step of forming a reaction layer by adsorption of a gas on a surface of an etching target material, a desorption step of desorbing the reaction layer after the reaction layer forming step, and a removal step of removing the reaction layer or a deposited film, characterized in that the surface of the etching target material is etched by the reaction layer forming step and the desorption step.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 14, 2020
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Miyako Matsui, Kenichi Kuwahara, Naoki Yasui, Masaru Izawa, Tatehito Usui, Takeshi Ohmori
  • Patent number: 10537953
    Abstract: In control applying a gradient to a command voltage value during an arc period, although stable welding can be performed even in a case where a protrusion length of a welding wire becomes long, when the disturbance such as sudden change in the protrusion length is generated, a current waveform of the arc period is undershot, the short circuit period is disturbed, and it took time to return to the stable state, and the amount of sputter generation is also increased. Therefore, it is possible to suppress a change in current such as undershoot or the like when the disturbance is generated, stabilize short circuit cycle, perform welding with a strong resistance to disturbance and a small amount of sputter generation by changing an inductance value a plurality of times during the arc period.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 21, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kaito Matsui, Atsuhiro Kawamoto, Takahiro Noguchi, Masaru Kowa
  • Publication number: 20190352474
    Abstract: A partially separated fiber bundle having a surface of a reinforcing fiber coated with a sizing agent containing a water-soluble polyamide-based resin, in which a separated fiber section consisting of a plurality of separated fiber bundles and an unseparated fiber section are provided alternately along a longitudinal direction of the reinforcing fiber bundle consisting of a plurality of single yarns, wherein the reinforcing fiber bundle contains 600 fibers/mm or more and less than 1,600 fibers/mm of fibers per unit width while the reinforcing fiber has a drape level of 120 mm or more and 240 mm or less.
    Type: Application
    Filed: January 26, 2018
    Publication date: November 21, 2019
    Inventors: Mitsuki Fuse, Masaru Tateyama, Hiroshi Hirano, Satoshi Seike, Akihiko Matsui, Kazuma Ura, Tetsuya Motohashi
  • Publication number: 20190237337
    Abstract: In cycle etching in which a depo process and an etching process are repeated, a depo film thickness over a pattern is controlled precisely, and etching is executed to have a desired shape stably for a long time.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 1, 2019
    Inventors: Miyako MATSUI, Tatehito USUI, Masaru IZAWA, Kenichi KUWAHARA
  • Publication number: 20190153632
    Abstract: A method of producing a partially separated fiber bundle includes a partial separation processing step for alternately forming separation-processed sections, each divided into a plurality of bundles, and not-separation-processed sections along the lengthwise direction of a fiber bundle, wherein a separation means provided with a plurality of projected parts is penetrated into the fiber bundle to create separation-processed parts, the separation means is removed from the fiber bundle, and the separation means is penetrated into the fiber bundle again, characterized in that a sizing agent is applied at an arbitrary timing during the production process of the partially separated fiber bundle. A partially separated fiber bundle is obtained by the production method, a fiber-reinforced resin molding material uses the partially separated fiber bundle, and a production method makes the fiber-reinforced resin molding material.
    Type: Application
    Filed: June 1, 2017
    Publication date: May 23, 2019
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Masaru Tateyama, Mitsuki Fuse, Akihiko Matsui, Chiasa Sato
  • Patent number: 9021937
    Abstract: Provided is a reciprocating compressor having a structure in which friction losses between a shaft and a bearing can be reduced without impairing the ability of the bearing to support the shaft. A reciprocating compressor (100) includes a cylinder (5), a piston (4), a connecting rod (6), a shaft (1), and a bearing (2). The shaft (1) has a journal portion (28) as a portion covered by the bearing (2). The journal portion (28) has a first journal portion (7) located closer to the connecting rod (6) with respect to a midpoint M of the journal portion (28) in a direction parallel to a rotational axis and a second journal portion (8) located farther from the connecting rod (6) with respect to the midpoint M. The bearing (2) has a first sliding portion (10) for supporting the first journal portion (7) and a second sliding portion (11) for supporting the second journal portion (8).
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: May 5, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoko Sugamoto, Masaru Matsui, Fuminori Sakima, Ko Inagaki, Akira Nakano
  • Patent number: 8985976
    Abstract: An expander-integrated compressor (100) includes: a compression mechanism (2) for compressing a working fluid; an expansion mechanism (3) for expanding a working fluid; and a shaft (5) that couples the compression mechanism (2) and the expansion mechanism (3). The expansion mechanism (3) includes a variable vane mechanism (60). The variable vane mechanism (60) controls the movement of a first vane (48) so that the ratio of a period P2 to a period P1 (P2/P1) can be adjusted, where P1 denotes the period during which the first vane (48) is in contact with a first piston (46) in the course of one rotation of the shaft (5), and P2 denotes the period during which the first vane (48) is spaced from the first piston (46) in the course of one rotation of the shaft (5).
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: March 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yasufumi Takahashi, Atsuo Okaichi, Takeshi Ogata, Hidetoshi Taguchi, Takumi Hikichi, Masaru Matsui
  • Patent number: 8971101
    Abstract: A semiconductor device includes a memory cell. The cell includes: a magnetic recording layer (MRL) formed of ferromagnetic material; first and second magnetization fixed layers (MFLs) coupled to the MRL; first and second reference layers (RLs) opposed to the MRL; and first and second tunnel barrier films (TBFs) inserted between the MRL and the first and second reference layers (RLs), respectively. The first MFL has a magnetization fixed in a first direction, and the second MFL has a magnetization fixed in a second direction opposite to the first direction. The first and second RLs and the first and second TBFs are positioned between the first and second MFLs. The first RL has a magnetization fixed in a third direction which is selected from the first and second directions, and the second RL has a magnetization fixed in a fourth direction opposite to the third direction.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: March 3, 2015
    Assignee: Renesas Electronics Corporation
    Inventor: Masaru Matsui
  • Patent number: 8689581
    Abstract: A rotary-type fluid machine (10A) includes: a closed casing (1) having a bottom portion utilized as an oil reservoir, a rotary-type fluid mechanism (expansion mechanism) (15) that is provided in an upper portion of the closed casing (1) and in which working chambers (32, 33) in cylinders (22, 24) are partitioned into a suction side working chamber and a discharge side working chamber by vanes (28, 29), a shaft (5) having therein an oil supply passage (51) for supplying oil to the fluid mechanism (15), the shaft being connected to the fluid mechanism (15) and extending an oil reservoir (45), an oil pump (52) provided at a lower portion of the shaft (5), an oil retaining portion (65) for retaining oil, which is pumped up by the oil pump (52) and supplied through the oil supply passage (51), in a surrounding region around the fluid mechanism (15) to allow the partitioning members of the fluid mechanism (15) to be lubricated, the oil retaining portion formed so that the liquid level of the oil retained therein is
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: April 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Atsuo Okaichi, Hiroshi Hasegawa, Masaru Matsui, Tomoichiro Tamura, Takeshi Ogata
  • Publication number: 20130028015
    Abstract: A semiconductor device includes a memory cell. The memory cell includes: a magnetic recording layer formed of ferromagnetic material; first and second magnetization fixed layers coupled to the magnetic recording layer; first and second reference layers opposed to the magnetic recording layer; and first and second tunnel barrier films inserted between the magnetic recording layer and the first and second reference layers, respectively. The first magnetization fixed layer has a magnetization fixed in a first direction, and the second magnetization fixed layer has a magnetization fixed in a second direction opposite to the first direction. The first and second reference layers and the first and second tunnel barrier films are positioned between the first and second magnetization fixed layers.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 31, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventor: Masaru MATSUI
  • Patent number: 8316663
    Abstract: An expander-compressor unit (30) includes: a closed casing (1) holding an oil at a bottom portion thereof; a motor (2) provided in the closed casing (1); a compression mechanism (3) for compressing a refrigerant and discharging it into the closed casing (1), the compression mechanism (3) being disposed below the motor (2) in the closed casing (1); an expansion mechanism (4) disposed below the compression mechanism (3) in the closed casing (1); and a coupling mechanism (50) for coupling a compression mechanism side shaft (5) to an expansion mechanism side shaft (6). An oil supply passage (53) for supplying the oil to the compression mechanism (3) is formed in the compression mechanism side shaft (5). An oil suction port (53A) is provided in a portion of the compression mechanism side shaft (5), the portion being above the expansion mechanism (4).
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: November 27, 2012
    Assignee: Panasonic Corporation
    Inventors: Atsuo Okaichi, Yasufumi Takahashi, Hiroshi Hasegawa, Masaru Matsui, Fuminori Sakima
  • Patent number: 8316664
    Abstract: A fluid machine (10) includes a closed casing (11) in which an oil reservoir (16) for holding oil is formed in a bottom part.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 27, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Hasegawa, Masaru Matsui, Takeshi Ogata, Shingo Oyagi, Masanobu Wada
  • Patent number: 8305788
    Abstract: A semiconductor memory device to an exemplary aspect of the present invention includes a plurality of memory cells, a plurality of word lines, a plurality of bit line pairs, a plurality of column selectors, a common signal line pair including one common line commonly connected to one of each of the plurality of bit line pairs, and the other common line commonly connected to the other of each of the plurality of bit line pairs, a sense amplifier amplifying the potential difference of the common signal line pair, and a plurality of capacitance adding circuits that balance with parasitic capacitances of the column selectors which are not selected, the capacitance adding circuits being provided respectively between the one of each of the bit line pairs and the other common line and between the other of each of the bit line pairs and the one common line.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: November 6, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Masaru Matsui, Mayumi Furuta
  • Patent number: 8251682
    Abstract: An integrally formed vane (301) is disposed slidably in a vane groove (205a) of a first cylinder (205) and a vane groove (206a) of a second cylinder (206). A cut-out (301a) with a width substantially equal to the thickness of an intermediate plate (304) is provided in the vane (301), which is divided by this cut-out (301a) into a first vane portion (301b) whose leading end makes contact with a first piston (209) at its leading end and a second vane portion (301c) whose leading end makes contact with a second piston (210). This configuration allows the first vane portion (301b) to be pushed toward the first piston (209) side by the pressure difference acting on the second vane portion (301c) and makes it possible to keep a contact state between the first vane portion (301b) and the first piston (209), even when no pushing force toward the first piston (209) side that results from the pressure difference acts on the first vane portion (301b).
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Hasegawa, Masaru Matsui, Atsuo Okaichi, Tomoichiro Tamura, Takeshi Ogata
  • Patent number: 8186179
    Abstract: An the expander-compressor unit (100) includes a closed casing (1) in which an oil can be stored in its bottom part, a compression mechanism (2) disposed in an upper part of the closed casing (1), an expansion mechanism (3) disposed in a lower part of the closed casing (1), a shaft (5) for coupling the compression mechanism (2) and the an expansion mechanism (3) to each other, and an oil pump (6), disposed between the compression mechanism (2) and the expansion mechanism (3), for supplying the oil (26) filling a surrounding space of the expansion mechanism (3) to the compression mechanism (2).
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: May 29, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasufumi Takahashi, Hiroshi Hasegawa, Masaru Matsui, Atsuo Okaichi, Takeshi Ogata
  • Patent number: 8177532
    Abstract: The expander-compressor unit 70 includes the closed casing 1, the expansion mechanism 4 disposed in the closed casing 1 so that a surrounding space thereof is filled with the oil, the compression mechanism 2 disposed in the closed casing 1 so as to be positioned higher than the oil level, the shaft 5 for coupling the compression mechanism and the expansion mechanism 4 to each other, and the oil flow suppressing member 50 disposed in the surrounding space of the expansion mechanism 4 so that the space 55a filled with the oil is formed between the expansion mechanism 4 and the oil flow suppressing member 50. Thereby the flow of the oil filling the inner reserving space 55a is suppressed, and thus, heat transfer from the high temperature oil to the low temperature expansion mechanism can be reduced.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: May 15, 2012
    Assignee: Panasonic Corporation
    Inventors: Atsuo Okaichi, Yasufumi Takahashi, Hiroshi Hasegawa, Masaru Matsui, Takeshi Ogata, Masanobu Wada
  • Patent number: 8127567
    Abstract: An oil supply passage (68) is formed inside a rotating shaft (56) of a compression mechanism (21). An oil supply passage (38) is formed inside a rotating shaft (36) of an expansion mechanism (22). A boss portion (81) is provided at a lower end of the rotating shaft (56). A shaft portion (82) that is engaged in the boss portion (81) is provided at an upper end of the rotating shaft (36). The circumference of a coupling part (80), which includes the boss portion (81) and the shaft portion (82) is covered by an upper bearing (42) of the expansion mechanism (22). The upper bearing (42) supports both the rotating shaft (36) and the rotating shaft (56).
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: March 6, 2012
    Assignee: Panasonic Corporation
    Inventors: Takeshi Ogata, Hiroshi Hasegawa, Masaru Matsui, Atsuo Okaichi, Tomoichiro Tamura, Masanobu Wada