Patents by Inventor Masaru Watanabe

Masaru Watanabe 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: 20080272558
    Abstract: A sealing device in which a main seal lip used for a shock absorber is formed in a one-stage structure, wherein lattice-shaped projections that include a plurality of projections extending along a sliding direction and a plurality of projections extending along a direction perpendicular to the sliding direction are formed on a sliding surface of the main lip at a position apart a specified distance from a lip edge.
    Type: Application
    Filed: July 11, 2008
    Publication date: November 6, 2008
    Applicant: NOK Corporation
    Inventors: Hiroyuki SATO, Masaru Watanabe, Koichi Mizunoya, Takeo Otani, Hidenori Arai, Sosuke Ito, Ryota Okubo
  • Publication number: 20080231653
    Abstract: A disclosed image forming apparatus includes an apparatus main body; a page-width inkjet head unit capable of ejecting fluid droplets without substantially moving the page-width inkjet head unit while forming an image on a medium to be recorded on; a maintaining and recovering unit maintaining and recovering a function of a nozzle of the page-width inkjet head unit; and an engaging unit for engaging the page-width inkjet head unit and the maintaining and recovering unit together as a single unit when the page-width inkjet head unit and the maintaining and recovering unit are removed from the apparatus main body as a single unit.
    Type: Application
    Filed: February 12, 2008
    Publication date: September 25, 2008
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasuhiro KAWASHIMA, Taku KUDOH, Masaru WATANABE, Hideki SUEOKA, Ikoh SOH
  • Publication number: 20080210139
    Abstract: This invention provide packaging structure for building boards and building boards loading structure. A packaging structure comprises plural building boards and plural bands, and wherein the plural building boards are banded at plural locations by the plural bands, and wherein a surface of bands which locates in a both end of the packaging structure is adhesive. And a building boards loading structure which loads plural building boards a pallet with, wherein the building boards loading structure comprises plural packages, and wherein the package comprises plural building boards and plural bands, and wherein the plural building boards are banded at plural locations by the plural bands, and wherein the plural packages are loaded the pallet with, and wherein the location of bands in each upper and lower package which is loaded the pallet with is different each other.
    Type: Application
    Filed: December 28, 2007
    Publication date: September 4, 2008
    Applicant: Nichiha Corporation
    Inventors: Masaru Watanabe, Yoshinori Hibino
  • Publication number: 20080199125
    Abstract: In conventional optical isolators, an optical signal is dispersed by polarization or the characteristics are varied by heat generation in a garnet crystal. According to the invention, the crystal optical axis (3c) of rutile crystal (3) is oriented so that the separation directions of the ordinary ray (O) and the extraordinary ray (E) are perpendicular to the plane including the optical axes of optical fibers (10, 11). Furthermore, the focusing central optical axis (6c) of a focusing rod lens (6) is arranged parallel with optical axes of the optical fibers (10, 11) and at a substantially equal distance from the four rays, i.e. the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (10) and the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (11). An air gap (7) of about 200 [?m] is provided, as a heat insulating means, between the focusing rod lens (6) and a magnetized garnet crystal (8).
    Type: Application
    Filed: November 15, 2007
    Publication date: August 21, 2008
    Inventors: Yoshiaki Takeuchi, Masaru Watanabe, Ikuo Fukuzaki
  • Patent number: 7321463
    Abstract: In conventional optical isolators, an optical signal is dispersed by polarization or the characteristics are varied by heat generation in a garnet crystal. According to the invention, the crystal optical axis (3c) of rutile crystal (3) is oriented so that the separation directions of the ordinary ray (O) and the extraordinary ray (E) are perpendicular to the plane including the optical axes of optical fibers (10, 11). Furthermore, the focusing central optical axis (6c) of a focusing rod lens (6) is arranged parallel with optical axes of the optical fibers (10, 11) and at a substantially equal distance from the four rays, i.e. the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (10) and the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (11). An air gap (7) of about 200 [?m] is provided, as a heat insulating means, between the focusing rod lens (6) and a magnetized garnet crystal (8).
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: January 22, 2008
    Assignee: Osaki Electric Co., Ltd.
    Inventors: Yoshiaki Takeuchi, Masaru Watanabe, Ikuo Fukuzaki
  • Publication number: 20080007587
    Abstract: A disclosed image forming apparatus for forming an image on a recording medium includes an inkjet head having a nozzle surface and inkjet nozzles on the nozzle surface and configured to jet ink droplets from the inkjet nozzles; a recording medium conveying mechanism including a recording medium conveyor and configured to convey the recording medium by the recording medium conveyor into an image forming area facing the inkjet head; a test pattern forming part provided separately from the recording medium conveyor; a control unit configured to perform an image forming test where a test pattern is formed on the test pattern forming part by jetting ink droplets from the inkjet head; and a test pattern detection unit configured to detect the test pattern formed on the test pattern forming part.
    Type: Application
    Filed: June 20, 2007
    Publication date: January 10, 2008
    Inventor: Masaru Watanabe
  • Publication number: 20080007592
    Abstract: A cleaning unit for use in an inkjet recording apparatus, having an inkjet head including a nozzle face, includes a first wiping member and a second wiping member. The first wiping member slides on the nozzle face in a given direction while in contact with the nozzle face to remove ink from the nozzle face and accumulate the ink to one side of the nozzle face. The second wiping member, disposed rearward of the first wiping member with respect to the given direction, removes the ink accumulated by the first wiping member.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 10, 2008
    Inventor: Masaru Watanabe
  • Patent number: 7285354
    Abstract: A method for producing a polymer electrolyte membrane type fuel cell including a polymer electrolyte membrane, fuel and air electrodes that sandwich therebetween the polymer electrolyte membrane and that each include a gas diffusion layer and a catalyst layer provided in contact with the polymer electrolyte membrane, and separators provided in contact with the gas diffusion layers. A paste containing at least a carbon powder having a catalyst supported thereon is spread over a predetermined support, and the coated support is dried to form the catalyst layer. A cracking occupation area on the electrodes is controlled to a predetermined tolerance by controlling at least one of (1) a thickness of the catalyst layer, (2) a kind of carbon having the catalyst supported thereon, and (3) a drying rate of a solvent of the paste.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: October 23, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Ueyama, Masaru Watanabe, Nobuyuki Kamikihara, Eiichi Yasumoto
  • Publication number: 20070241515
    Abstract: In a sealing device (1) , in which a main seal lip (6) used for a shock absorber is formed in a one-stage seal lip structure, for the purpose to improve friction characteristics while securing sealing performance, a roughened portion (63) to which satin finishing is applied to form projections and recessions on the surface thereof is formed on the sliding surface (61) of the main seal lip (6) slidably moving on a contacting member at a position apart a specified distance from a lip edge (62). An area between the lip edge (62) and the portion where the roughened portion (63) is formed is a plane portion (64) to which the satin finishing for forming irregularities is not applied. In place of the satin finishing, a plurality of axially extending projections (65), concave threads (67), or lattice-shaped projections (68) may be formed on the roughened portion.
    Type: Application
    Filed: August 3, 2005
    Publication date: October 18, 2007
    Applicant: Nok Corporation
    Inventors: Hiroyuki Sato, Masaru Watanabe, Koichi Mizunoya, Takeo Otani, Hidenori Arai, Sosuke Ito, Ryota Okubo
  • Publication number: 20070217802
    Abstract: Provided is a method for adjusting a developing device including a magnetic roll (143) for holding a two-component developer (146) composed of a carrier and toner filled in a developing tank (142) in a brush state, and a developing roll (144) for developing an electrostatic latent image formed in an image carrier (110) by holding toner conveyed from the magnetic roll (143), having a bias voltage adjustment step for adjusting a conveyance amount of toner from the magnetic roll (143) to the developing roll (144) by an adjustment of bias voltages (Vdc3, Vdc4) applied to the magnetic roll (143) and the developing roll (144) respectively, and a mixing ratio adjustment step for adjusting a conveyance amount of the toner by an adjusting a mixing ratio of the two-component developer (146).
    Type: Application
    Filed: March 8, 2007
    Publication date: September 20, 2007
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Masaru Watanabe
  • Publication number: 20070125302
    Abstract: The die as provided is a die in which an upper block is placed on an upper surface of a lower block with a lower surface of the upper block in contact with the upper surface, wherein the lower block includes a manifold and a slit serving as a path for discharging paint from the manifold to the outside, constituted respectively from between the lower block and the lower surface of the upper block by forming a cavity and a space which communicates with the outside from this cavity along a columnar direction, respectively, from one end face of a columnar body with a trapezoidal shape of cross section to the other end face, a paint supply path which communicates with the manifold is formed from an outer side located between the one end face and the other end face of the lower block, a slit space dimension of the slit between front end portions in a paint discharge direction of the lower block and the upper block in a discharge port serving as an open end to the outside is smallest on the one end face side and inc
    Type: Application
    Filed: September 27, 2006
    Publication date: June 7, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akihiro HORIKAWA, Yasuhiro UEYAMA, Masaru WATANABE
  • Publication number: 20070052180
    Abstract: To solve unstableness of sealing capability and friction characteristic caused by intrusion of external pressure into a portion between an oil seal (1) and a dust seal (2), a sealing device for a reciprocating shaft is provided with an oil seal (1) where a main lip (12) tightly contacted with an outer peripheral surface of the reciprocating shaft (113) in the state of facing inside in the axial direction is integrally provided in an inner peripheral portion of an inner installation ring (11), and a dust seal (2) where a dust lip (22) tightly contacted with an outer peripheral surface of the shaft (113) in the state of facing outside in the axial direction is integrally provided in an inner peripheral portion of an outer installation ring (21), and the oil seal (1) is provided with an external pressure seal (16) tightly contacted with the outer installation ring (21).
    Type: Application
    Filed: September 15, 2004
    Publication date: March 8, 2007
    Applicant: NOK CORPORATION
    Inventors: Masaru Watanabe, Tsutomu Shishido
  • Publication number: 20070038587
    Abstract: A structuring unit generates a combination pattern of the attribute values by combining an attribute value of the assessment target data with an attribute value indicating a unspecified value. A reconstructing unit searches data matching the combination pattern from the accumulation data, and generates subset data. An index setting unit sets an index indicating significance of relationship between the generated subset data with assessment data. An assessing unit selects subset data that becomes a basis of assessment, based on the set index, and performs an assessment on a prediction result based on the selected subset data.
    Type: Application
    Filed: June 6, 2006
    Publication date: February 15, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Masaru Watanabe, Hideki Hanaoka
  • Publication number: 20060268405
    Abstract: In conventional optical isolators, an optical signal is dispersed by polarization or the characteristics are varied by heat generation in a garnet crystal. According to the invention, the crystal optical axis (3c) of rutile crystal (3) is oriented so that the separation directions of the ordinary ray (O) and the extraordinary ray (E) are perpendicular to the plane including the optical axes of optical fibers (10, 11). Furthermore, the focusing central optical axis (6c) of a focusing rod lens (6) is arranged parallel with optical axes of the optical fibers (10, 11) and at a substantially equal distance from the four rays, i.e. the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (10) and the ordinary ray (O) and the extraordinary ray (E) propagating along the optical axis of the optical fiber (11). An air gap (7) of about 200 [?m] is provided, as a heat insulating means, between the focusing rod lens (6) and a magnetized garnet crystal (8).
    Type: Application
    Filed: June 23, 2004
    Publication date: November 30, 2006
    Inventors: Yoshiaki Takeuchi, Masaru Watanabe, Ikuo Fukuzaki
  • Publication number: 20060238659
    Abstract: The invention relates to a display unit in which a plurality of long containers 3 is disposed side by side with the length directed vertically, the long containers 3 containing water, and an air feed pipe 6 corresponding to each long container 3 for feeding air from the bottom of the long container 3 includes: a solenoid valve 7 switched under the control of a controller 11 for feeding and stopping the air supplied from an air pump; a flow controller 8 capable of maintaining the flow rate of the air to be fed at a predetermined value; a check valve 9, the elements being arranged in order in the direction of feed; and an air stone 5 at the end, wherein images are displayed by the microbubbles generated from a filter 5c substantially around the outer periphery of the air stone 5, whereby expressing beautiful images with excellent uniformity and clearness by bubbles.
    Type: Application
    Filed: February 26, 2004
    Publication date: October 26, 2006
    Inventors: Masaru Watanabe, Takeshi Sakuraba
  • Publication number: 20060204267
    Abstract: A toner density on a toner image carrier means such as an intermediate transfer belt is accurately measured, even if a durability of the toner image carrier means is changed. It is assumed that output dark voltages from said first and second photo-detector means are P0 and S0, respectively; back-ground voltages from said first and second photo-detector means are Pg and Sg, respectively, when any toner is not attached on said toner image carrier means; measured voltages from said first and second photo-detector means are P and S, respectively, when said toner image was formed on said toner image carrier means. Then, a coverage rate CR and a durability X are calculated by the following formulae. CR=1?((P?P0)?(S?S0))/((Pg?P0)?(Sg?S0)), X=A×(1?(Sg?S0)/((Pg?P0)). Further, the toner density is obtained on the basis of the corrected CR by using durability X as a parameter.
    Type: Application
    Filed: January 19, 2006
    Publication date: September 14, 2006
    Applicant: Kyocera Mita Corporation
    Inventor: Masaru Watanabe
  • Patent number: 7105203
    Abstract: The intermittent coating apparatus which includes a nozzle 1 which applies a paint 6 to a base material, a feeding side two-way valve 10 which repeats feeding of the paint 6 to the nozzle 1 and stop of the feeding, a return side two-way valve which 11 repeats discharge of the paint 6 to a return side and stop of the discharge, a paint flow path 12, means to feed the paint 6 into the flow path 12, and paint returning means 5 which repeats suction and return of the paint 6 out of and into the nozzle 1, and is characterized in that switching of the feeding side two-way valve 10 is carried out earlier than that of the return side two-way valve 11 within a range not shorter than 5 msec and not longer than 100 msec at least at a coating start time.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: September 12, 2006
    Assignee: Mastsushita Electric Industrial Co., Ltd.
    Inventors: Noboru Masuda, Masaru Watanabe
  • Patent number: 7041336
    Abstract: The intermittent coating apparatus which includes a nozzle 1 which applies a paint 6 to a base material, a feeding side two-way valve 10 which repeats feeding of the paint 6 to the nozzle 1 and stop of the feeding, a return side two-way valve which 11 repeats discharge of the paint 6 to a return side and stop of the discharge, a paint flow path 12, means to feed the paint 6 into the flow path 12, and paint returning means 5 which repeats suction and return of the paint 6 out of and into the nozzle 1, and is characterized in that switching of the feeding side two-way valve 10 is carried out earlier than that of the return side two-way valve 11 within a range not shorter than 5 msec and not longer than 100 msec at least at a coating start time.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: May 9, 2006
    Assignee: Matsushita Electric Industrial, Co., Ltd.
    Inventors: Noboru Masuda, Masaru Watanabe
  • Publication number: 20060057281
    Abstract: A method of producing a membrane-electrode assembly for a fuel cell remarkably enhances the productivity and properties of fuel cell. There are provided in the method a first catalyst layer forming step of spreading a first coating compound over a running substrate to form a first catalyst layer, an electrolyte forming step of spreading a second coating compound over said first catalyst layer while the first catalyst layer is wet to form an electrolyte layer, a drying step of drying the electrolyte layer, and a second catalyst layer forming step of spreading a third coating compound having a noble metal supported thereon over the dried electrolyte layer to form a second catalyst layer.
    Type: Application
    Filed: July 28, 2003
    Publication date: March 16, 2006
    Inventors: Shintaro Izumi, Nobuyuki Kamikihara, Masaru Watanabe, Yusuke Ozaki, Miho Kobayashi, Yasuhiro Ueyama
  • Publication number: 20040209138
    Abstract: A method for producing a polymer electrolyte membrane type fuel cell including a polymer electrolyte membrane, fuel and air electrodes that sandwich therebetween the polymer electrolyte membrane and that each include a gas diffusion layer and a catalyst layer provided in contact with the polymer electrolyte membrane, and separators provided in contact with the gas diffusion layers. A paste containing at least a carbon powder having a catalyst supported thereon is spread over a predetermined support, and the coated support is dried to form the catalyst layer. A cracking occupation area on the electrodes is controlled to a predetermined tolerance by controlling at least one of (1) a thickness of the catalyst layer, (2) a kind of carbon having the catalyst supported thereon, and (3) a drying rate of a solvent of the paste.
    Type: Application
    Filed: January 15, 2004
    Publication date: October 21, 2004
    Inventors: Yasuhiro Ueyama, Masaru Watanabe, Nobuyuki Kamikihara, Eiichi Yasumoto