Patents by Inventor Masakatsu Hiraoka
Masakatsu Hiraoka 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: 20060188428Abstract: Disclosed is an additive for a plastic, comprising fine particles obtained by calcination and slaking of a dolomite which exhibits two endothermic peaks in the differential thermal analysis, said fine particles containing calcium carbonate, magnesium carbonate, magnesium oxide, calcium hydroxide and magnesium hydroxide as main chemical components and also containing an ignition loss component in an amount of 10 to 40% by weight based on the weight of said fine particles. A plastic hating hydrogen chloride scavenging properties and antimicrobial properties imparted by incorporating the additive for a plastic is also disclosed.Type: ApplicationFiled: July 14, 2004Publication date: August 24, 2006Inventors: Kazuo Wakabayashi, Takemi Atarashi, Arata Miyagi, Itsuki Harada, Yasuyuki Akamatsu, Masakatsu Hiraoka, Yoshinobu Yoshihara, Shuhei Miyauchi, Taizou Imoto
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Patent number: 6645902Abstract: An adsorbent and process for producing an absorbent capable of decomposing an organic halogen compound, is provided. The adsorbent can adsorb organic halogen compounds contained in waste gases and can assuredly decompose them without synthesizing them. A salt of Pt and/or Pd, an organic titanium compound and an organic binder are reacted in a solvent, to thereby synthesize a dispersion of an organic metal compound precursor containing Pt and/or Pd and Ti in molecules thereof, a sol of TiO2 is added to the dispersion to prepare a catalyst-coating solution, an activated carbon is impregnated with the catalyst-coating solution, and the resulting mixture is heated, thereby allowing the activated carbon to carry thereon an organic halogen compound-decomposing catalyst comprising TiO2 and, dispersed therein, fine particles of Pt and/or Pd. In a low temperature range of 130 to 150° C.Type: GrantFiled: May 3, 2002Date of Patent: November 11, 2003Assignee: NGK Insulators, Ltd.Inventors: Masakatsu Hiraoka, Katsuhiro Tokura, Kazuyuki Oshita
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Publication number: 20020177524Abstract: An adsorbent having the capability of decomposing an organic halogen compound, which adsorbent cannot only adsorb organic halogen compounds contained in waste gases but also can assuredly decompose them without synthesizing them as well as a process for producing the same are provided. A salt of Pt and/or Pd, an organic titanium compound and an organic binder are reacted in a solvent, to thereby synthesize a dispersion of an organic metal compound precursor containing Pt and/or Pd and Ti in molecules thereof, a sol of TiO2 is added to the dispersion to prepare a catalyst-coating solution, an activated carbon is impregnated with the catalyst-coating solution, and the resulting mixture is heated, thereby allowing the activated carbon to carry thereon an organic halogen compound-decomposing catalyst comprising TiO2 and, dispersed therein, fine particles of Pt and/or Pd. In a low temperature range of 130 to 150° C.Type: ApplicationFiled: May 3, 2002Publication date: November 28, 2002Inventors: Masakatsu Hiraoka, Katsuhiro Tokura, Kazuyuki Oshita
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Patent number: 5294419Abstract: A method for removing nitrogen oxides and organic chlorine compounds from a combustion waste gas, which comprises the steps of: adding ammonia (NH.sub.3) as a reducing agent to a combustion waste gas containing nitrogen oxides and organic chlorine compounds; causing the combustion waste gas added with ammonia to contact with, while keeping the temperature of the combustion waste gas within a prescribed range, with a catalyst comprising at least one selected from the group consisting of platinum (Pt), palladium (Pd), ruthenium (Ru), manganese (Mn), copper (Cu), chromium (Cr) and iron (Fe) and oxides thereof, supported on the surface of a carrier comprising at least one selected from the group consisting of titanium oxide (TiO.sub.2), silicon oxide (SiO.sub.2), aluminum oxide (Al.sub.2 O.sub.3) and zirconium oxide (ZrO.sub.2), thereby removing nitrogen oxides and organic chlorine compounds from the combustion waste gas.Type: GrantFiled: November 12, 1991Date of Patent: March 15, 1994Assignees: Masakatsu Hiraoka, NKK Corporation, NGK InsulatorsInventors: Masakatsu Hiraoka, Toshihiko Iwasaki, Haruhito Tsuboi, Takashi Noto, Miki Yamagishi, Takashi Yokoyama, Yasuo Suzuki, Yoshinori Imoto, Osamu Ishikawa, Katsuhiro Tokura
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Patent number: 5260044Abstract: A method for removing detrimental organic chlorine compounds such as polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans from a combustion waste gas, which comprises the steps of: bringing organic chlorine compounds contained in a combustion waste gas at a temperature within a range of from 150.degree. to 350.degree. C. into contact with a catalyst comprising at least one selected from the group consisting of platinum, palladium, ruthenium, manganese, copper, chromium and iron and oxides thereof, which catalyst is supported on the surface of a carrier containing at least titanium oxide, Aluminum oxide and silicon oxide, to cause a decomposition reaction of the organic chlorine compounds, thereby removing organic chlorine compounds from the combustion waste gas at a high efficiency.Type: GrantFiled: April 15, 1992Date of Patent: November 9, 1993Assignees: Masakatsu Hiraoka, NKK Corporation, NGK Insulators, Ltd.Inventors: Masakatsu Hiraoka, Toshihiko Iwasaki, Haruhito Tsuboi, Takashi Noto, Miki Yamagishi, Takashi Yokoyama, Yasuo Suzuki, Yoshinori Imoto, Katsunosuke Hara, Osamu Ishikawa
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Patent number: 5254797Abstract: A catalyst composition including component A and component B, the component A being a carrier, preferably having a honeycomb structure, and being a single-component oxide or a multi-component composite oxide of at least one metal of titanium, silicon and zirconium, and the component B being a catalyst component deposited on the carrier of component A and being at least one member selected from the group of noble metals and other specifically limited metals and their oxides, is very effective for decomposing and removing poisonous organic chlorine compounds, such as dioxin and the like, or poisonous organic chlorine compound-forming substances contained in an exhaust gas exhausted from an incinerator of an incineration plant provided with the incinerator and a dust collector. In addition, and the generation of the poisonous organic chlorine compound from the incineration plant can be prevented.Type: GrantFiled: November 24, 1992Date of Patent: October 19, 1993Assignees: NGK Insulators, Ltd., Masakatsu Hiraoka, Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yoshinori Imoto, Katsunosuke Hara, Masakatsu Hiraoka, Kunio Sano, Akira Inoue
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Patent number: 5206003Abstract: An excellent method of decomposing flon is provided which can decompose flon economically with high decomposition efficiency without necessitating high temperature and high pressure by contacting a gas containing a flon with a catalyst at a condition of a temperature of not less than 200.degree. C. and space velocity of not over than 50,000 (hr.sup.-1).Type: GrantFiled: December 9, 1991Date of Patent: April 27, 1993Assignees: NGK Insulators, Ltd., Masakatsu HiraokaInventors: Yoshinori Imoto, Katsunosuke Hara, Masakatsu Hiraoka
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Patent number: 4769776Abstract: The image of microorganisms contained in a sludge of an aeration tank is picked up by an image pickup device having the function of magnifying and picking up microorganism images. Binarizing processing is then made to obtain a binarized image from the resulting gray image, and the binarized image is subjected to thinning processing. The number of pixels of the image left after often the thinning processing is counted to measure the amount of filamentous microorganisms. In this manner, the amount of the filamentous microorganisms can be measured accurately irrespective of their thickness.Type: GrantFiled: August 26, 1986Date of Patent: September 6, 1988Assignee: Hitachi, Ltd.Inventors: Masakatsu Hiraoka, Kazushi Tsumura, Kenji Baba, Shoji Watanabe, Mikio Yoda, Naoki Hara
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Patent number: 4581044Abstract: A process for separating and recovering carbonic acid gas from a methane-rich gas containing the same by a pressure swing means comprising contacting the methane-rich gas with an adsorbent for carbonic acid gas at a high pressure to obtain a refined methane gas and then desorbing the carbonic acid from the carbonic acid gas-adsorbed adsorbent at a low pressure to obtain a substantially pure carbonic acid gas.Type: GrantFiled: February 21, 1984Date of Patent: April 8, 1986Assignee: Seitetsu Kagaku Co., Ltd.Inventors: Masaru Uno, Satoshi Ihara, Takeo Tanabe, Masakatsu Hiraoka
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Patent number: 4564444Abstract: A system for controlling a process utilizing filamentous microorganisms is disclosed. The amount of the microorganisms in a medium for growing the filamentous microorganisms is measured, and the control factors associated with the growth of the microorganisms in the medium are controlled on the basis of the measurement of the amount of microorganisms. In the process of measuring the amount of microorganisms, an optical image of a specimen of the medium is formed and scanned two-dimensionally to produce a series of brightness signals corresponding to the brightness distribution of the optical image. The level of the brightness signal is used to determine the amount of the microorganisms contained in the medium.Type: GrantFiled: July 26, 1984Date of Patent: January 14, 1986Assignee: Hitachi, Ltd.Inventors: Masakatsu Hiraoka, Kazushi Tsumura, Kenji Baba, Shunsuke Nogita, Shunji Mori