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).
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Publication number: 20080272558Abstract: 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: ApplicationFiled: July 11, 2008Publication date: November 6, 2008Applicant: NOK CorporationInventors: Hiroyuki SATO, Masaru Watanabe, Koichi Mizunoya, Takeo Otani, Hidenori Arai, Sosuke Ito, Ryota Okubo
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Publication number: 20080231653Abstract: 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: ApplicationFiled: February 12, 2008Publication date: September 25, 2008Applicant: Ricoh Company, Ltd.Inventors: Yasuhiro KAWASHIMA, Taku KUDOH, Masaru WATANABE, Hideki SUEOKA, Ikoh SOH
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Publication number: 20080210139Abstract: 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: ApplicationFiled: December 28, 2007Publication date: September 4, 2008Applicant: Nichiha CorporationInventors: Masaru Watanabe, Yoshinori Hibino
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Publication number: 20080199125Abstract: 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: ApplicationFiled: November 15, 2007Publication date: August 21, 2008Inventors: Yoshiaki Takeuchi, Masaru Watanabe, Ikuo Fukuzaki
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Patent number: 7321463Abstract: 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: GrantFiled: June 23, 2004Date of Patent: January 22, 2008Assignee: Osaki Electric Co., Ltd.Inventors: Yoshiaki Takeuchi, Masaru Watanabe, Ikuo Fukuzaki
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Publication number: 20080007587Abstract: 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: ApplicationFiled: June 20, 2007Publication date: January 10, 2008Inventor: Masaru Watanabe
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Publication number: 20080007592Abstract: 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: ApplicationFiled: July 6, 2007Publication date: January 10, 2008Inventor: Masaru Watanabe
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Patent number: 7285354Abstract: 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: GrantFiled: January 15, 2004Date of Patent: October 23, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasuhiro Ueyama, Masaru Watanabe, Nobuyuki Kamikihara, Eiichi Yasumoto
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Publication number: 20070241515Abstract: 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: ApplicationFiled: August 3, 2005Publication date: October 18, 2007Applicant: Nok CorporationInventors: Hiroyuki Sato, Masaru Watanabe, Koichi Mizunoya, Takeo Otani, Hidenori Arai, Sosuke Ito, Ryota Okubo
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Publication number: 20070217802Abstract: 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: ApplicationFiled: March 8, 2007Publication date: September 20, 2007Applicant: KYOCERA MITA CORPORATIONInventor: Masaru Watanabe
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Publication number: 20070125302Abstract: 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 incType: ApplicationFiled: September 27, 2006Publication date: June 7, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Akihiro HORIKAWA, Yasuhiro UEYAMA, Masaru WATANABE
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Publication number: 20070052180Abstract: 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: ApplicationFiled: September 15, 2004Publication date: March 8, 2007Applicant: NOK CORPORATIONInventors: Masaru Watanabe, Tsutomu Shishido
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Publication number: 20070038587Abstract: 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: ApplicationFiled: June 6, 2006Publication date: February 15, 2007Applicant: FUJITSU LIMITEDInventors: Masaru Watanabe, Hideki Hanaoka
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Publication number: 20060268405Abstract: 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: ApplicationFiled: June 23, 2004Publication date: November 30, 2006Inventors: Yoshiaki Takeuchi, Masaru Watanabe, Ikuo Fukuzaki
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Publication number: 20060238659Abstract: 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: ApplicationFiled: February 26, 2004Publication date: October 26, 2006Inventors: Masaru Watanabe, Takeshi Sakuraba
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Publication number: 20060204267Abstract: 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: ApplicationFiled: January 19, 2006Publication date: September 14, 2006Applicant: Kyocera Mita CorporationInventor: Masaru Watanabe
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Patent number: 7105203Abstract: 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: GrantFiled: February 7, 2000Date of Patent: September 12, 2006Assignee: Mastsushita Electric Industrial Co., Ltd.Inventors: Noboru Masuda, Masaru Watanabe
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Patent number: 7041336Abstract: 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: GrantFiled: July 14, 2003Date of Patent: May 9, 2006Assignee: Matsushita Electric Industrial, Co., Ltd.Inventors: Noboru Masuda, Masaru Watanabe
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Publication number: 20060057281Abstract: 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: ApplicationFiled: July 28, 2003Publication date: March 16, 2006Inventors: Shintaro Izumi, Nobuyuki Kamikihara, Masaru Watanabe, Yusuke Ozaki, Miho Kobayashi, Yasuhiro Ueyama
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Publication number: 20040209138Abstract: 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: ApplicationFiled: January 15, 2004Publication date: October 21, 2004Inventors: Yasuhiro Ueyama, Masaru Watanabe, Nobuyuki Kamikihara, Eiichi Yasumoto