Patents by Inventor Itaru Watanabe
Itaru 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: 20040013705Abstract: An object of this invention is to provide new processed meat foods that can fortify the physical endurance significantly or promote the combustion of body fats.Type: ApplicationFiled: March 25, 2003Publication date: January 22, 2004Inventors: Itaru Watanabe, Yasuyuki Oishi, Hironori Tomi
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Publication number: 20030227520Abstract: The invention is prevent drawbacks resulting from the bubble generated at the downstream side of the filter, while minimizing the waste in the ink.Type: ApplicationFiled: February 6, 2002Publication date: December 11, 2003Inventors: Akihiro Yamanaka, Mitsuru Kurata, Yutaka Koizumi, Hiroyuki Maeda, Takeaki Shima, Akira Goto, Takeshi Kono, Tetsuto Kageyama, Itaru Watanabe, Hiroki Tajima, Yasushi Iijima, Toshihiro Sasaki
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Patent number: 6631966Abstract: A liquid discharge head records by generating thermal energy to discharge ink from a discharge port onto a recording medium. The head is provided with a heat dissipating substrate positioned substantially parallel and adjacent to a discharge portion substrate, and a space, which communicates with the outside air, positioned at a surface of the heat dissipating substrate which is opposite the surface of the heat dissipating substrate facing the discharge portion substrate. The space extends in the scanning direction so as to facilitate air flow through the head during carriage movement in order to dissipate heat generated by the head during recording. A cooling fan may be provided to increase the air flow and the consequent heat dissipation.Type: GrantFiled: November 13, 2001Date of Patent: October 14, 2003Assignee: Canon Kabushiki KaishaInventors: Itaru Watanabe, Mitsuru Kurata, Hiroki Tajima, Takayuki Ono, Hiroaki Shirakawa
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Patent number: 6468428Abstract: A photocatalyst is carried on a surface of a light guiding body for guiding light needed to activate the photocatalyst in such a manner the light guided by the light guiding body irradiates directly from the surface of the light guiding body the photocatalyst.Type: GrantFiled: October 27, 1997Date of Patent: October 22, 2002Assignee: Hoya CorporationInventors: Yoshikazu Nishii, Nobuhiro Maeda, Shin-ichi Ogawa, Yoichi Hachitani, Masayuki Higashida, Itaru Watanabe
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Publication number: 20020118242Abstract: The present invention discloses an elastic transformable body for adjusting vapor pressure, a vapor pressure adjustment chamber using the same, an ink-jet recording head having a vapor pressure adjustment device and an ink-jet recording device having the recording head, and more particularly to a vapor pressure adjustment device for adjusting negative pressure generated in a liquid chamber in an ink-jet recording head when discharging ink. The pressure adjustment chamber has at least one elastic transformation body having a changeable volume according to vapor pressure to adjust the vapor pressure in a container communicated thereto and a support for supporting the elastic transformation body to the container.Type: ApplicationFiled: February 8, 2002Publication date: August 29, 2002Inventors: Hiroki Tajima, Yutaka Koizumi, Akihiro Yamanaka, Hiroyuki Maeda, Akira Goto, Takeshi Kono, Itaru Watanabe, Takeshi Yamaguchi, Yasushi Iijima
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Publication number: 20020118263Abstract: A cartridge is detachably mountable on holding means of an ink jet recording apparatus, which is freely reciprocating to scan for recording by discharging ink to a recording medium, and provided with a recording head for discharging ink from plural nozzles formed in parallel on the lower face of the carriage main body facing the recording medium. For the front face of the cartridge main body, an electrical connection portion having electrodes on the cartridge side is provided and electrically connected with electrodes of the holding means on holding means side, and for the rear face being opposite to the front face, an ink connection portion having supply means connected thereto is provided to supply ink to the recording head from the main tank installed on the main body of the ink jet recording apparatus.Type: ApplicationFiled: February 7, 2002Publication date: August 29, 2002Applicant: Canon Kabushiki KaishaInventors: Itaru Watanabe, Yutaka Koizumi, Akihiro Yamanaka, Hiroyuki Maeda, Akira Goto, Hiroki Tajima, Yasushi Iijima, Toshihiro Sasaki, Tomoyuki Nagase
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Publication number: 20020081246Abstract: A filter material in which protrusions are formed on the surface of a fiber base material by combining the filter base material and particles for forming protrusions having at least a part covered by a photocatalyst or a material containing a photocatalyst is disclosed. A gas treatment apparatus in which a gas treatment filter made of a filter material in which a photocatalyst having a refractive index higher than that of a filter base material is carried on the surface of the filter base material is installed in atmosphere to be treated and ultraviolet rays introduced into the light guiding member are leaked from the photocatalyst, thereby treating gas by the photocatalytic reaction.Type: ApplicationFiled: January 3, 2002Publication date: June 27, 2002Applicant: Hoya CorporationInventors: Shougo Tsukada, Itaru Watanabe, Youji Touma, Souji Arai, Shinichi Ogawa, Masayuki Higashida, Yoshikazu Nishii
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Publication number: 20020057312Abstract: The invention provides a liquid discharge recording head adapted to execute recording by moving in opposed relationship to a recording medium and by discharging liquid from a discharge port, the recording head comprising a discharge portion substrate provided with thermal energy generating means capable of generating thermal energy to be used for ink discharge, a heat dissipating substrate positioned substantially parallel and adjacent to the discharge portion substrate, a space communicable with the atmospheric air, at a rear surface of the heat dissipating substrate, opposite to the surface at which the discharge portion substrate is positioned.Type: ApplicationFiled: November 13, 2001Publication date: May 16, 2002Inventors: Itaru Watanabe, Mitsuru Kurata, Hiroki Tajima, Takayuki Ono, Hiroaki Shirakawa
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Patent number: 6361136Abstract: Precision of detecting existence/non-existence of a liquid container and a liquid level in the container is improved even if the detection is performed by a single sensor, or even if the S/N ratio of the detection is low, the detected results can be discriminated from one another. For this, a concave polyhedron is provided in the center of the bottom surface of an optical prism in order to reduce the amount of light reflected on the bottom surface of the optical prism and returned to a photoreceptor. Moreover, a reflection curved surface having a quadratic surface e.g. spherical surface or paraboloid, is provided on the bottom surface of an ink tank, for reflecting light emitted by an optical unit consisting of a light emission device and a photoreceptor.Type: GrantFiled: February 19, 1998Date of Patent: March 26, 2002Assignee: Canon Kabushiki KaishaInventors: Itaru Watanabe, Shinji Takagi, Soichi Hiramatsu, Osamu Sato, Kenta Udagawa
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Publication number: 20010023230Abstract: A CRT in its entirety is to be rendered lightweight without detracting from the resistance against pressure of a panel or from characteristics desirable for the CRT. To this end, there is provided a glass panel for a CRT obtained on chemically reinforcing the glass containing 57 to 64 wt % of SiO2, 0.1 to 4 wt % of Al2O3, 5 to 10 wt % of Na2O, 5 to 10 wt % of K2O, 7 to 13 wt % of SrO, 7 to 11 wt % of BaO, 0.1 to 2 wt % of TiO2, 0.1 to 4 wt % of ZrO2 and 0.01 to 1 wt % of CeO2.Type: ApplicationFiled: February 9, 2001Publication date: September 20, 2001Inventors: Masataka Santoku, Fumio Kuramoto, Masamichi Okada, Yoichi Hachitani, Itaru Watanabe
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Patent number: 6264303Abstract: A detection unit for optically detecting the position of a carriage via a linear scale is fixed to the rear surface of the carriage that moves along the linear scale, and an absorber which serves as a cleaning member and can absorb liquid is fixed to the detection unit. The absorber moves upon movement of the carriage and slides on the scale to absorb and remove liquid contaminants such as ink, water droplets, or the like attached to the surface of the scale. Hence, generation of an error signal and a drop in signal output caused by contamination on the scale surface can be prevented, and high-resolution, high-precision position detection can be realized.Type: GrantFiled: December 27, 1996Date of Patent: July 24, 2001Assignee: Canon Kabushiki KaishaInventor: Itaru Watanabe
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Patent number: 5696634Abstract: An objective lens for application to an image apparatus of which the size of the image pickup surface is changeable over between a first mode of a first aspect ratio and a second mode of a second aspect ratio has first optical member for extending the focal length of the objective lens, second optical member for shrinking the focal length of the objective lens, an operating member, and a transmitting mechanism for transmitting the operating force of the operating member to the first optical member under the first mode, and transmitting the operating force to the first and second optical member under the second mode, and by the operation of the operating member, under the first mode, the first optical member is removably insertable into the optical path of the objective lens, and under the second mode, the first and second optical member are removably insertable into the optical path of the objective lens.Type: GrantFiled: December 27, 1995Date of Patent: December 9, 1997Assignee: Canon Kabushiki KaishaInventors: Itaru Watanabe, Yasunori Imaoka, Norio Nakai
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Patent number: 4988035Abstract: Insert 1 comprises thin substrate made by cold-rolling, and two bonding alloy layers formed by plating on the upper and lower surfaces of substrate, respectively. Both layers is extremely thin, and is made of an alloy having a melting point lower than that of substrate. Insert 1 is used to achieve liquid phase diffusion bonding of first and second base metals. Insert 1 is interposed between first base metal and second base metal. Then, insert 1 and base metals are clamped together with a pressure of, for example, 0.5 kgf/mm.sup.2, and are placed in a atmosphere of a low pressure of about 10.sup.-4 Torr and heated to the melting point of alloy layers or to a temperature above this melting point but below the melting points of substrate and plates.Type: GrantFiled: September 5, 1989Date of Patent: January 29, 1991Assignee: Nippon Kokan Kabushiki KaishaInventors: Yasuhiro Ueno, Hiroshi Kagechika, Itaru Watanabe, Shigeyoshi Kosuge, Toshifumi Kojima
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Patent number: 4572748Abstract: The steel plate having a high tensile strength is manufactured from a steel consisting essentially of 0.04-0.16% by weight of C, 0.02-0.50% by weight of Si, 0.4-1.2% by weight of Mn, 0.2-5.0% by weight of Ni, 0.2-1.5% by weight of Cr, 0.2-1.0% by weight of Mo, 0.01-0.10% by weight of acid soluble Al, 0.03-0.15% by weight of one or more of V, Ti and Nb, 0.015% or less by weight of P, 0.006% or less by weight of S and the balance of iron and inherent impurities. The steel is heated to a temperature above a temperature at which carbo-nitrides of V and Nb and carbides of Ti become complete solid solution state, rolled with total reduction of 40% or more below 950.degree. C., quenched by simultaneous cooling immediately after completion of the rolling from a temperature above (A.sub.3 -50).degree.C. and tempered at a temperature lower than Ac.sub.1 temperature.Type: GrantFiled: April 15, 1985Date of Patent: February 25, 1986Assignee: Nippon Kokan Kabushiki KaishaInventors: Masataka Suga, Makoto Yamada, Kazuhide Takahashi, Nobuhiro Iwasaki, Kazuyuki Matsui, Toru Izawa, Itaru Watanabe, Hisatoshi Tagawa
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Patent number: 4341938Abstract: A method of longitudinally seam-welding steel pipes comprises the steps of providing a conductive net-like enclosure tube around a cable for supplying a direct electric current from the power source to the welding head; and conducting a direct electric current through the enclosure tube and through the steel pipe in a direction opposite to that in which the direct current runs through the cable. Apparatus for longitudinally seam-welding steel pipes comprises an electrical cable coupled to a welding head, a net tube surrounding the cable, and a device for supplying a direct electric current to the cable in a first direction and to the net enclosure tube and steel pipe in the opposite direction. The direct currents flowing in the enclosure tube and in the steel pipe is adjustably controlled to minimize the magnitude of a magnetic field created around the net enclosure tube and producing a welded steel pipe seam.Type: GrantFiled: December 12, 1980Date of Patent: July 27, 1982Assignee: Nippon Kokan Kabushiki KaishaInventors: Hiroyoshi Matsubara, Kenji Takeshige, Tatsumi Osuka, Takashi Nagamine, Osamu Hirano, Jinkichi Tanaka, Itaru Watanabe, Motoaki Suzuki
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Patent number: 4337141Abstract: A cation exchange membrane reinforced by one sheet of a woven fabric made of folded glass-fiber-filament yarns subjected to a bulky treatment is found to be improved in dimensional stability, water permeability (water leakage) and durability with much improved adhesion of the reinforcement to the resin constituting the cation exchange membrane.Type: GrantFiled: August 5, 1980Date of Patent: June 29, 1982Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Itaru Watanabe, Isamu Wataya, Sakae Tsushima
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Patent number: 4238659Abstract: In longitudinally seam-welding a pipe-blank for welded steel pipe from the inside along a groove by the GMA welding process which comprises using direct electric current supplied to a plurality of consumable electrodes in tandem through at least one cable as the welding current, at least two even-numbered consumable electrodes are used, half of said consumable electrodes being connected to said direct current so as to be positive in polarity and the remaining half of said consumable electrodes being connected to said direct current so as to be negative in polarity, to enable lines of magnetic force produced by said direct electric current for welding flowing through said at least one cable introduced into said pipe-blank to cancel each other, thereby preventing magnetization of said pipe-blank and the resulting magnetic arc blow of the welding arc.Type: GrantFiled: February 12, 1979Date of Patent: December 9, 1980Assignee: Nippon Kokan Kabushiki KaishaInventors: Fusao Koshiga, Jinkichi Tanaka, Itaru Watanabe, Motoaki Suzuki, Toshifumi Kojima, Hiroyoshi Matsubara, Tatsumi Osuka, Kenji Takeshige, Takashi Nagamine, Osamu Hirano
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Patent number: 4209367Abstract: An electrolytic cell having anode and cathode chambers separated by a cation exchange membrane comprising a fluorocarbon polymer containing pendant carboxylic acid or salt groups of the formula ##STR1## wherein R is a group containing perfluoroalkyl or perfluoroalkoxy having 1 to 5 carbon atoms and M is hydrogen, an alkali or alkaline earth metal or ammonium as a surface stratum on the cathode side of the membrane.Type: GrantFiled: March 30, 1977Date of Patent: June 24, 1980Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Maomi Seko, Yasumichi Yamakoshi, Hirotsugu Miyauchi, Kyoji Kimoto, Toshioki Hane, Mitsunobu Fukumoto, Itaru Watanabe, Sakae Tsushima
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Patent number: D461493Type: GrantFiled: July 30, 2001Date of Patent: August 13, 2002Assignee: Canon Kabushiki KaishaInventors: Hiroki Tajima, Itaru Watanabe, Toshihiro Sasaki, Takeshi Kono
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Patent number: D461494Type: GrantFiled: July 30, 2001Date of Patent: August 13, 2002Assignee: Canon Kabushiki KaishaInventors: Hiroki Tajima, Itaru Watanabe, Toshihiro Sasaki