Patents by Inventor Masahiko Ogawa

Masahiko Ogawa 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: 6863370
    Abstract: A method of generating ejection pattern data for a plurality of nozzles for use in selectively ejecting functional liquid droplets from the nozzles is to draw on ore more one chip-forming area on a workpiece. The method includes a pixel-setting step of setting pixel information concerning an array of pixels in the chip-forming areas, a chip-setting step of setting chip information concerning an array of the chip-forming areas on the workpiece, a nozzle-setting step of setting nozzle information concerning an array of the nozzles, and a data-generating step of generating the ejection pattern data for the nozzles from the pixel information, the chip information, and the nozzle information, based on a positional relationship between the workpiece and the functional liquid droplet ejection head. The ejection pattern data are easily and quickly generated for the nozzles arranged in an array in the plurality of functional liquid droplet ejection heads.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: March 8, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Masahiko Ogawa, Tsuyoshi Kato
  • Patent number: 6834943
    Abstract: A liquid discharge head is provided with discharge ports for discharging liquid, liquid flow paths communicated with the discharge ports for supplying liquid to the discharge ports, a substrate having heat generating members for creating bubbles in the liquid, and movable members facing the heat generating members and being arranged in the liquid flow paths. The movable members have a free end on the discharge port side with a specific gap with respect to the heat generating members. The movable member is fixed to the substrate above the heat generating member on the substrate.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: December 28, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Mihara, Masahiko Ogawa, Kazuaki Masuda, Masami Ikeda, Ichiro Saito, Hiroyuki Ishinaga, Toshio Kashino, Shuji Koyama, Tomoyuki Hiroki, Yoshiyuki Imanaka, Teruo Ozaki, Masahiko Kubota
  • Publication number: 20040257680
    Abstract: Disclosed is a simple and compact optical element holding system in a projection optical system which enables correction of astigmatism without causing comatic aberration. The holding system includes a relative angle adjusting system for tilting one of at least two optical elements with respect to an optical axis, and a tilt angle adjusting system for tilting the at least two optical elements integrally, by the same amount as and in an opposite direction to the tilt direction of the relative angle adjusting system, with respect to the optical axis and separately from the relative angle adjusting system.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 23, 2004
    Inventor: Masahiko Ogawa
  • Publication number: 20040213752
    Abstract: A hair cosmetic product has a two agent type hair cosmetic which comprises a first agent containing an alkali agent and a second agent containing hydrogen peroxide, wherein at least one of the first and second agents contains a surfactant; and a foamer vessel which discharges a mixed liquid comprising the first and second agents in the form of foam. Another hair cosmetic product has a two agent type hair cosmetic which contains a first agent that includes an alkali agent and a second agent that includes hydrogen peroxide, and which is used after mixing the first and second agents immediately prior to use, and a foamer vessel from which a mixed liquid of the first and second agents is discharged in the form of foam. A surfactant is contained in the mixed liquid at an amount of 0.1 to 10 wt %, and the viscosity of the mixed liquid at 25° C. is 1 to 300 mPa·s.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 28, 2004
    Applicant: Kao Corporation
    Inventors: Hiroyuki Fujinuma, Takashi Matsuo, Masahiko Ogawa, Tomohito Koshika, Kazuhiro Okada
  • Patent number: 6794444
    Abstract: A silicone emulsion composition of the addition reaction curing type comprising a major proportion of an organopolysiloxane containing at least two alkenyl radicals and T units and having a viscosity of 5-100 mPa·s, a minor proportion of another organopolysiloxane containing at least two alkenyl radicals and having a 30% toluene diluted viscosity of 1,000-10,000 mPa·s, an organohydrogenpolysiloxane, a platinum radical metal catalyst, a surfactant, and water cures into a coating that adheres well to plastic film substrates. The cured coating exhibits release properties to pressure-sensitive adhesives and can be utilized as release film.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: September 21, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenji Yamamoto, Shinji Irifune, Tutomu Nakajima, Masahiko Ogawa
  • Publication number: 20040152825
    Abstract: A composition comprising the following components:
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventors: Kenji Yamamoto, Masahiko Ogawa, Tsutomu Nakajima
  • Patent number: 6769762
    Abstract: A substrate for use of an ink jet recording head is provided with a plurality of heat generating members for generating thermal energy to be utilized for discharging ink. The heat generating members are structured by thin film formed by material represented by Tax Siy Rz, which has specific resistance value of 4000 &mgr;&OHgr;·cm or less, where R is one or more kinds of elements selected from among C, O, N, and x+y+z=100. With the structure thus arranged, the heat generating members make it possible to maintain the change of resistance values within a small amount even when used continuously for a long time, and provide recorded images in high quality with long life and reliability.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: August 3, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Saito, Yoshiyuki Imanaka, Teruo Ozaki, Toshimori Miyakoshi, Muga Mochizuki, Masahiko Ogawa
  • Publication number: 20040127636
    Abstract: The addition of silicone rubber fine particles to a composition comprising an organopolysiloxane having at least two alkenyl groups, an organohydrogenpolysiloxane having at least three SiH groups and a catalyst yields a composition which when coated onto any substrate, forms a coating whose surface is extremely reduced in gloss and highly uniform. Using the coating of the composition as a release sheet, synthetic resin sheets having matte surfaces can be readily manufactured.
    Type: Application
    Filed: July 25, 2003
    Publication date: July 1, 2004
    Inventors: Kenji Yamamoto, Masahiko Ogawa
  • Patent number: 6756127
    Abstract: A primer composition comprising (A) a diorganopolysiloxane having an average degree of polymerization of 500-2,000 and alkenyl groups at both ends of its molecular chain in an amount of 0.001-0.005 mol per 100 g of the diorganopolysiloxane, (B) an organohydrogenpolysiloxane having at least two SiH groups in a molecule, (C) a platinum base curing catalyst, and (D) a retarder is effective for improving the adhesion between various plastic films and silicone pressure-sensitive adhesives and thus forming satisfactory pressure-sensitive adhesive tapes.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: June 29, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yasuyoshi Kuroda, Shunji Aoki, Masahiko Ogawa
  • Publication number: 20040122551
    Abstract: A method for simulating the behavior of a flexible medium which is conveyed along a conveying path constructed of a pair of conveyor rollers includes the steps of dividing the surfaces of the conveyor rollers into a contact region and a non-contact region and setting a first peripheral speed and a second peripheral speed for the contact region and the non-contact region, respectively, and performing a simulation under a condition that a conveying force corresponding to the difference between the second peripheral speed and a moving speed of the flexible medium is applied to the flexible medium when the flexible medium reaches the non-contact region of the conveyor rollers and a condition that the flexible medium is conveyed at the first peripheral speed when the flexible medium reaches the contact region of the conveyor rollers.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 24, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Masahiko Ogawa, Tatsuro Kawakami
  • Patent number: 6696161
    Abstract: A silicone composition comprising a first organopolysiloxane containing T units, a second organopolysiloxane, an organohydrogenpolysiloxane, and a platinum catalyst cures into a coating that adheres well to plastic film substrates and even to polyester film substrates which are difficult for conventional solventless silicone compositions to adhere. The cured coating exhibits release properties to pressure-sensitive adhesives, and a film substrate coated with the cured silicone composition provides a release film.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: February 24, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shinji Irifune, Masahiko Ogawa
  • Publication number: 20040010865
    Abstract: Hair dye compositions comprise (A) ammonia or an ammonium salt, (B) a carbonate (other than an ammonium salt), (C) a transition metal salt, and (D) a chelating agent, and have a pH of from 8.5 to 12. They do not give off an intensely irritating odor and have low irritating property, can change hair into a lighter tone in a short time or can dye hair well in a color ranging from a light color to a deep color, and moreover, assure good retention of the thus-obtained tone or color.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 22, 2004
    Applicant: Kao Corporation
    Inventors: Masahiko Ogawa, Takashi Hori
  • Patent number: 6673457
    Abstract: The invention discloses a novel radiation-curable silicone-based release coating composition capable of giving a cured release coating film on a substrate such as a plastic resin film exhibiting excellent adhesion to a variety of substrate materials and excellent releasability. The radiation-curable releasing silicone composition of the invention comprises (A) an aromatic compound having, in a molecule, at least two cationically polymerizable organopolysiloxanyl groups such as epoxy-substituted organopolysiloxanyl groups as the silicone ingredient and (B) a photopolymerization initiator which is an onium salt compound such as diaryliodonium salt compounds.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: January 6, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masatoshi Takahashi, Masahiko Ogawa
  • Patent number: 6663228
    Abstract: A base member for an ink jet head, the base member comprising a substrate, a heat generating resistor provided between electrodes which constitute a pair on the substrate an upper protection layer provided on an insulation layer which in turn is provided on the heat generating resistor, the upper protection layer having a contact surface contactable to ink, the improvement residing in that the upper protection layer is made of amorphous alloy having a following composition formula: Ta&agr;Fe&bgr;Ni&ggr;Cr&dgr;  where 10 atomic %≦&agr;≦30 atomic %, &agr;+&bgr;<80 atomic % &agr;<&bgr;, &dgr;>&ggr; and, &agr;+&bgr;+&ggr;+&dgr;=100 atomic %, and, at least the contact surface of the upper protection layer contains an oxide of a constituent component.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: December 16, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Saito, Masahiko Ogawa, Teruo Ozaki, Masahiko Kubota, Muga Mochizuki
  • Publication number: 20030201244
    Abstract: A method of generating ejection pattern data for a plurality of nozzles for use in selectively ejecting functional liquid droplets from the nozzles is to draw on ore more one chip-forming area on a workpiece. The method includes a pixel-setting step of setting pixel information concerning an array of pixels in the chip-forming areas, a chip-setting step of setting chip information concerning an array of the chip-forming areas on the workpiece, a nozzle-setting step of setting nozzle information concerning an array of the nozzles, and a data-generating step of generating the ejection pattern data for the nozzles from the pixel information, the chip information, and the nozzle information, based on a positional relationship between the workpiece and the functional liquid droplet ejection head. The ejection pattern data are easily and quickly generated for the nozzles arranged in an array in the plurality of functional liquid droplet ejection heads.
    Type: Application
    Filed: February 19, 2003
    Publication date: October 30, 2003
    Applicant: Seiko Epson Corporation
    Inventors: Masahiko Ogawa, Tsuyoshi Kato
  • Patent number: 6605388
    Abstract: In a first process, an electrically conductive thin metal plate 7 is subjected to a press molding process employing a plurality of punches 3 in a primary molding block 1 and a plurality of dies 4 in a secondary molding block 2, so as to form therein a plurality of hollow projections 9 that project from one side of the metal plate 7, and bulges 14 that bulge out in a direction opposite to that of the projections 9, positioned between the projections 9. In a second process, the metal plate 7 on which have been formed the plurality of projections 9 and bulges 14 is subjected to either chemical etching or electrolytic etching, so as to form through holes 17 by corrosively removing thin-walled portions 11 from the tips of the projections 9, and, at the same time, to corrosively form innumerable fine irregularities 18 over the entire surface of the metal plate 7.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: August 12, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Goda, Mamoru Iida, Takeo Takayanagi, Masahiko Ogawa, Yoshio Moriwaki, Saburo Nakatsuka
  • Publication number: 20030132987
    Abstract: A head unit for carrying out operations for connecting and disconnecting cables and tubes to and from a plurality of functional liquid droplet ejection heads has a wiring connection assembly carried on a carriage and having a plurality of wiring connectors to be connected to main cables and a plurality of separate cables having one end thereof connected to the respective functional liquid droplet ejection heads and an opposite end thereof connected to the respective wiring connectors, and a piping connection assembly having a plurality of piping joints to be connected to main pipes and a plurality of separate pipes having one end thereof connected to respective functional liquid droplet ejection heads and opposite end thereof connected to respective piping joints.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 17, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahiko Ogawa
  • Publication number: 20030134131
    Abstract: A silicone emulsion composition of the addition reaction curing type comprising a major proportion of an organopolysiloxane containing at least two alkenyl radicals and T units and having a viscosity of 5-100 mPa·s, a minor proportion of another organopolysiloxane containing at least two alkenyl radicals and having a 30% toluene diluted viscosity of 1,000-10,000 mPa·s, an organohydrogenpolysiloxane, a platinum radical metal catalyst, a surfactant, and water cures into a coating that adheres well to plastic film substrates. The cured coating exhibits release properties to pressure-sensitive adhesives and can be utilized as release film.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 17, 2003
    Inventors: Kenji Yamamoto, Shinji Irifune, Tutomu Nakajima, Masahiko Ogawa
  • Patent number: 6588887
    Abstract: A liquid discharge head comprises discharge energy generating devices each generating energy to be utilized for discharging liquid as drops, and discharge ports arranged to face the discharge energy generating devices, respectively. For this head, the area of each discharge port is smaller than the area of each discharge energy generating device, and each of the discharge ports is arranged in the liquid. With the structure thus arranged, this liquid discharge head is made capable of discharging finer liquid droplets even at longer intervals of discharges, and also, capable of increasing the discharge speed of liquid droplets, thus making the repetition of discharge frequency extremely high, while meeting the demand that increases more for the arrangements of multiple nozzle, higher speed, and finer liquid droplet for the liquid discharge head.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: July 8, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masahiko Ogawa
  • Patent number: 6579649
    Abstract: Disclosed is a polymer electrolyte battery affording a high capacity density in which a layer of electrode active material mixture containing a polymer has an adequately regulated porosity and/or polymer content. The battery includes a unitary, laminated battery sheet composed of a negative electrode combined with positive electrodes, with a porous polymer separator being placed on both surfaces of the negative electrode. Each of the electrodes comprises a current collector and a layer of active material mixture disposed on both surfaces of the current collector, and the polymer is capable of absorbing and retaining nonaqueous electrolyte. The separator and the layer of electrode active material mixture have a porosity of 30 to 60%. Preferable polymer contents in the layer of active material mixture are in a range of 5 to 10 wt % for the positive electrode and in a range of 7 to 16 wt % for the negative electrode.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: June 17, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Makoto Tsutsue, Kazushige Kinoshita, Akiko Ishida, Ken Nishimura, Masahiko Ogawa, Nobuo Eda