Patents by Inventor Akio Watanabe
Akio 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: 20020114752Abstract: Methods for producing ruthenium perovskite represented by a chemical formula LaRuO3, wherein La is lanthanum to which twelve oxygen ions are coordinated, Ru is ruthenium to which six oxygen ions are coordinated, and O is oxygen, which comprises reacting an aqueous mixed metal ion solution containing metal ions of La and Ru with a precipitate-forming liquid in a reaction container to co-precipitate hydroxides of La and Ru, and subjecting the precipitate to a heat treatment. Alternatively, the co-precipitated mass is deposited on a suitable carrier and subsequently heated to form supported LaRuO3. The co-precipitated La and Ru hydroxides can also be directly formed on a carrier by precipitation from a homogenous solution containing La, Ru and urea. This provides a uniform dispersion of co-precipitated hydroxides on a carrier, subsequent heating of which results in formation of supported LaRuO3. The materials thus obtained are to be used as efficient catalysts for certain reactions of environmental importance.Type: ApplicationFiled: February 19, 2002Publication date: August 22, 2002Applicant: National Institute for Materials ScienceInventors: Nitin Kumar Labhasetwar, Takefumi Mitsuhashi, Akio Watanabe
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Publication number: 20020092225Abstract: A rod for fly-fishing is disclosed. The rod has a flexural rigidity of a fly rod of a transverse direction right-angled in the direction to cast a fly line and fly toward an intended target is different from the flexural rigidity of the fly rod in the direction to cast the fly line and fly toward the intended target.Type: ApplicationFiled: August 27, 2001Publication date: July 18, 2002Inventor: Akio Watanabe
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Publication number: 20020078266Abstract: An inspecting apparatus for inspecting a performance of a circuit baseboard. The inspecting apparatus includes a PLD having a circuit for inspecting the circuit baseboard based upon a response signal from the circuit baseboard. A file storing device may be provided so as to store at least one PLD file in a memory. A correspondence assigning device is provided so as to assign correspondence of a PLD file to a circuit baseboard and register information of the correspondence in the memory. A list displaying device may be provided so as to display a list of a plurality of circuit baseboards to be viewed. A determining device may be provided so as to determine a type of a circuit baseboard selected from the list of a plurality of circuit baseboards via the list display. A loading device may also be provided so as to refer to the correspondence information and specify and read an applicable PLD file from the memory.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Applicant: Ricoh Company, Ltd.Inventors: Akio Watanabe, Ryoichi Imai, Hirotoshi Katoh
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Patent number: 5774884Abstract: A service is added to the mechanical use of dedicated terminals of a financial institution to thereby attain a differentiation of the financial institution from the other financial institutions. In executing a predetermined item of transaction by using a dedicated terminal, a lottery is performed on a magnetic code by a lottery system provided in a central computer processing system, and a predetermined advantage is imparted to the magnetic code when the lot falls upon it.Type: GrantFiled: March 8, 1995Date of Patent: June 30, 1998Assignee: Moebius CorporationInventors: Akio Watanabe, Masakuni Terano
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Luminescent material for mercury discharge lamp including phosphor and a continuous protective layer
Patent number: 5604396Abstract: A luminescent material for a mercury discharge lamp comprises a phosphor material including phosphor particles for emitting a luminous flux upon excitation by ultraviolet radiation at 254 nm and a protective layer continuously formed on the phosphor particle with at least one metal oxide selected from the group consisting of MgO, Y.sub.2 O.sub.3, La.sub.2 O.sub.3, Sm.sub.2 O.sub.3, Gd.sub.2 O.sub.3, Dy.sub.2 O.sub.3, Ho.sub.2 O.sub.3, Er.sub.2 O.sub.3, Yb.sub.2 O.sub.3, Lu.sub.2 O.sub.3, CaO, ZrO.sub.2, SrO, BaO, .alpha.-Al.sub.2 O.sub.3 and BeO. A mercury discharge lamp has a luminescent layer coated with the luminescent material on the wall of the light transmissive bulb thereof.Type: GrantFiled: July 29, 1994Date of Patent: February 18, 1997Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha ToshibaInventors: Akio Watanabe, Shoji Naoki, Masaaki Tamatani, Fumiyasu Yanagisawa, Kenji Terashima -
Patent number: 5293439Abstract: An integrated optical circuit for fiber-optics gyroscopes comprising two pairs of waveguide conduits each having a pair of input/output ports on each of end surfaces of a substrate opposed to each other and a pair of directional couplers each disposed between the two waveguide conduits forming each of the pairs of waveguide conduits. The pair of the directional couplers are connected to each other through a waveguide conduit in which a polarizer is disposed in its course, the other waveguide conduits connected to the directional couplers have metal coatings in their courses and non-reflective coatings on an end surface of the substrate. This integrated optical circuit is capable of preventing electromagnetic beams from being radiated into the substrate and suppressing re-entry of radiated electromagnetic beams into the waveguide conduits.Type: GrantFiled: November 10, 1992Date of Patent: March 8, 1994Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Hiroshi Mori, Akio Watanabe
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Patent number: 5191096Abstract: .omega.-Hydroxy fatty acids usable for the synthesis of medicaments, perfumes and polymers are produced by subjecting an alkali or alkaline earth metal salt of long-chain dicarboxylic acid monoester to a reduction with a borohydride compound or catalytic hydrogenating reduction treatment.Type: GrantFiled: January 23, 1992Date of Patent: March 2, 1993Assignee: Nippon Mining Co., Ltd.Inventors: Tadafumi Yokota, Akio Watanabe
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Patent number: 4831098Abstract: An antistatic agent containing a cationic and/or amphoteric, water-soluble or water-dispersible and heat-reactive blocked urethane prepolymer as an essential component, said prepolymer having at least one cationic group and/or at least one amphoteric group in its molecule and having isocyanate groups blocked with a thermally dissociable blocking agent. The antistatic agent is applicable to various materials and can give the antistatic property with the water repellency, which can be kept for a long term, to the materials.Type: GrantFiled: June 10, 1987Date of Patent: May 16, 1989Assignee: Dai-ichi Kogyo Seiyaku Co., Ltd.Inventors: Akio Watanabe, Toshiaki Doyama
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Patent number: 4822459Abstract: A lead oxide-coated electrode for use in electrolysis is disclosed, which comprises a primary layer comprising platinum and/or platinum oxide, an intermediate layer comprising .alpha.-PbO.sub.2, and a coating layer comprising .beta.-PbO.sub.2 successively coated on a substrate comprising a corrosion resistant metal. The electrode has a strong and durable lead oxide coating firmly bonded to the substrate, does not suffer from passivation, resistance increase, etc. and can be used stably for a long time at high current density. A process for producing the electrode is also disclosed.Type: GrantFiled: August 31, 1987Date of Patent: April 18, 1989Assignees: Agency of Industrial Science and Technology (MITI), Permelec Lectrode Ltd.Inventors: Minoru Ueda, Akio Watanabe, Takayuki Shimamune
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Patent number: 4794042Abstract: A magnetic recording medium wherein a magnetic layer containing a particulate magnetic material and a binder is formed on a substrate exhibits improved performance as magnetic recording tape, disk, and sheet when the particulate magnetic material comprises particles having iron carbide at least on the surface thereof and optional oxide particles, and the particulate magnetic material contains 5 to 90% by weight of iron carbide in the form of Fe.sub.n C.Type: GrantFiled: October 9, 1986Date of Patent: December 27, 1988Assignee: TDK CorporationInventors: Yuichi Kubota, Keiji Koga, Kazunori Tamazaki, Tsutomu Aoyama, Akio Watanabe
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Patent number: 4780101Abstract: There is provided a method of finishing a cellulosic fiber-containing textile product with a resin bath based on a water-soluble urethane prepolymer. This treatment provides for improvements in dry and wet creased crease resistance and wash-and-wear properties of cellulosic fiber-containing textile products.Type: GrantFiled: September 2, 1986Date of Patent: October 25, 1988Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Akio Watanabe, Kazuo Sato
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Patent number: 4766037Abstract: A photodegradable microcapsule is described which has a wall made of a polymer coat having an acid-decomposable bond selected from a silylether bond and a silylureido bond and which contains a compound that generates an acid upon light irradiation.Type: GrantFiled: September 9, 1986Date of Patent: August 23, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Watanabe, Shintaro Washizu, Fumiaki Shinozaki, Shun-ichi Ishikawa, Toshiaki Aoai
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Patent number: 4684546Abstract: A magnetic recording medium having a magnetic coating containing therein ferromagnetic metal powder provided on a base film, wherein the magnetic recording medium being characterized in that the surface roughness of the magnetic coating, i.e., the surface roughness R.sub.rms (a unit of measurement of .mu.m) with respect to a waveform having a wavelength P in a range of from 3 to 50 .mu.m out of groups of waveforms constituting the cross-sectional waveform of the surface of the magnetic coating, satisfies the following equation.R.sub.rms .ltoreq.7.5.times.10.sup.-4 P+7.5.times.10.sup.-3where 3.ltoreq.P.ltoreq.50 .mu.m.Type: GrantFiled: November 14, 1986Date of Patent: August 4, 1987Assignee: TDK CorporationInventors: Yasumichi Tokuoka, Yoshisuke Yamakawa, Akio Watanabe
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Patent number: 4663246Abstract: A magnetic recording medium having a magnetic coating containing therein ferromagnetic metal powder provided on a base film, wherein the magnetic recording medium being characterized in that the surface roughness of the magnetic coating, i.e., the surface roughness R.sub.rms (a unit of measurement of .mu.m) with respect to a waveform having a wavelength P in a range of from 3 to 50 .mu.m out of groups of waveforms constituting the cross-sectional waveform of the surface of the magentic coating, satisfies the following equation:R.sub.rms .ltoreq.7.5.times.10.sup.-4 P+7.5.times.10.sup.-3where 3.ltoreq.P.ltoreq.50 .mu.m.Type: GrantFiled: June 5, 1984Date of Patent: May 5, 1987Assignee: TDK CorporationInventors: Yasumichi Tokuoka, Yoshisuke Yamakawa, Akio Watanabe
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Patent number: 4632866Abstract: In a coating type magnetic recording medium, a base film is coated with a magnetic paint composition comprising a binder and a magnetic powder mixture of magnetic metal particles with magnetic metal carbide particles or magnetic metal particles having a metal carbide coating on the surface thereof. Preferably, the metal is iron and the metal carbide is iron carbide.Type: GrantFiled: March 26, 1985Date of Patent: December 30, 1986Assignee: TDK CorporationInventors: Yuichi Kubota, Akio Watanabe
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Patent number: 4605571Abstract: A process for improving the abrasion resistance of textile belts without decreasing the flexibility and with a good workability, which comprises applying an aqueous composition comprising a water soluble or dispersible, thermally reactive blocked urethane prepolymer to textile belts, and then subjecting the textile belts to heat treatment, thereby converting the blocked urethane prepolymer into a high molecular weight urethane resin.Type: GrantFiled: February 14, 1985Date of Patent: August 12, 1986Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Akio Watanabe, Sumio Goto
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Patent number: 4567083Abstract: A magnetic recording medium including a magnetic layer formed on a plastic base and having perpendicular magnetic anisotropy suited for perpendicular magnetization, has a back coating formed on the rear side of the base opposite the magnetic side. The back coating is a thermoset coating cured from a thermosetting composition or a radiation-cured coating cured from radiation-curable composition containing at least one component having at least one acrylic, maleic, or allylic double bond. The back coating has an asperity in the range of 0.04 to 0.6 .mu.m. By suitably selecting the asperity the running quality and output profile are improved.Type: GrantFiled: October 16, 1984Date of Patent: January 28, 1986Assignee: TDK CorporationInventors: Hiroyuki Arioka, Masaharu Nishimatsu, Akio Watanabe
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Patent number: 4401462Abstract: A metallic magnetic powder as fine metallic particles is produced by adsorbing zinc ion on iron oxyhydroxide in a alkaline bath with heating during or after the adsorption and then reducing it.Type: GrantFiled: April 1, 1981Date of Patent: August 30, 1983Assignee: TDK Electronics Co., Ltd.Inventors: Akio Watanabe, Tosiaki Ide, Tatsuo Uehori
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Patent number: 4331489Abstract: A magnetic powder is produced by mixing an aqueous solution of a metal salt with an aqueous solution of a reducing agent such as sodium boron hydride in a magnetic field to reduce said metal salt to continuously form a magnetic powder and heat-treating said magnetic powder in a non-oxidative atmosphere. The aqueous solution of a metal salt is mixed with said aqueous solution of a reducing agent in a magnetic field to continuously discharge a reaction mixture containing a magnetic powder having pH of 2.5 or lower from a reactor and said reaction mixture containing said magnetic powder is immediately continuously washed and filtered and said magnetic powder is heat-treated in said non-oxidative atmosphere.Type: GrantFiled: November 6, 1980Date of Patent: May 25, 1982Assignee: TDK Electronics Co., Ltd.Inventors: Tatsuo Uehori, Akio Watanabe, Tosiaki Ide
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Patent number: 4318961Abstract: A master magnetic recording medium comprises a polymer film substrate coated with a magnetic layer comprising a binder, a metallic magnetic powder A obtained by a wet reduction and a metallic magnetic powder B obtained by a dry reduction wherein both said magnetic powders A and B have each coercive force of 1800 Oe or higher and each saturated magnetization .sigma.s of 130 emu/g. or higher and a ratio of said magnetic powder A to said magnetic powder B is in a range of 0.1 to 10 by weight.Type: GrantFiled: October 23, 1980Date of Patent: March 9, 1982Assignee: TDK Electronics Co., Ltd.Inventors: Tosiaki Ide, Akio Watanabe, Tatsuo Uehori