Patents by Inventor Masayoshi Hayashida
Masayoshi Hayashida 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: 20100115994Abstract: The adsorbent for carbon monoxide of the present invention is obtained by activating a Cu-ZSM5 type zeolite prepared as a catalyst for removal of NOX through heating at 450 to 600° C. in an inert gas atmosphere containing no moisture. The gas purification method of the present invention includes removing carbon monoxide as a trace amount of impurities contained in a gas by a temperature swing adsorption method, wherein the adsorbent for carbon monoxide according to claim 1 is used, and a regeneration operation of the adsorbent for carbon monoxide is carried out at 200 to 350° C.Type: ApplicationFiled: March 4, 2008Publication date: May 13, 2010Inventors: Masayoshi Hayashida, Akihiro Nakamura, Tatsuya Hidano, Kazuhiko Fujie, Masato Kawai
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Patent number: 6916358Abstract: An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen is MSC wherein an oxygen and nitrogen separation ratio ? and a ratio (t95/t50) of a time t50 required for adsorbing 50% of the oxygen equilibrium adsorption amount and a time t95 required for adsorbing 95% of the oxygen equilibrium adsorption amount satisfy the inequality (t95/t50)<0.4×(??24)??35. The amount of adsorbent used with respect to a predetermined amount of nitrogen generated can be reduced since a method is carried out which uses this adsorbent to produce nitrogen by separating nitrogen from the mixed gas of oxygen and nitrogen by means of a PSA method. By this method, it is possible to reduce the cost of the apparatus and reduce and miniaturize the scale of the apparatus, and the power consumption amount can be reduced.Type: GrantFiled: August 29, 2002Date of Patent: July 12, 2005Assignee: Taiyo Nippon Sanso CorporationInventors: Akihiro Nakamura, Masato Kawai, Masayoshi Hayashida, Yoshinori Watanabe, Shinichi Marumo
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Publication number: 20040231510Abstract: An adsorbent for separating nitrogen from a mixed gas of oxygen and nitrogen is MSC wherein an oxygen and nitrogen separation ratio &agr; and a ratio (t95/t50) of a time t50 required for adsorbing 50% of the oxygen equilibrium adsorption amount and a time t95 required for adsorbing 95% of the oxygen equilibrium adsorption amount satisfy the inequalityType: ApplicationFiled: February 24, 2004Publication date: November 25, 2004Inventors: Akihiro Nakamura, Masato Kawai, Masayoshi Hayashida, Yoshinori Watanabe, Shinichi Marumo
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Patent number: 6767386Abstract: CMS adsorbents having suitable indexes are used to improve greatly the performance of nitrogen-producing apparatuses where nitrogen is obtained from the air with a PSA method, so as to improve the efficiency of nitrogen production. A nitrogen PSA apparatus is formed with two adsorbing columns where an adsorption step and a regeneration step are performed alternatively and periodically. The adsorption step is for adsorbing oxygen and conducting nitrogen to a product tank with the supply of compressed air from an air compressor, and the regeneration step for releasing the adsorbed gas after the adsorption step. The adsorbing columns are filled with a carbon molecular sieve (CMS) that selectively adsorbs oxygen as an adsorbent. The CMS adsorbs an oxygen/nitrogen amount of 50% of the saturated adsorption amount with a period TO/TN starting from oxygen/nitrogen supply, wherein TO is 5˜10 seconds and TN is larger than TO by more than 41 times.Type: GrantFiled: August 14, 2002Date of Patent: July 27, 2004Assignee: Nippon Sanso CorporationInventors: Masato Kawai, Akihiro Nakamura, Masayoshi Hayashida, Yoshinori Watanabe, Shinichi Marumo
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Publication number: 20030097931Abstract: CMS adsorbents having suitable indexes are used to improve greatly the performance of nitrogen-producing apparatuses where nitrogen is obtained from the air with a PSA method, so as to improve the efficiency of nitrogen production. A nitrogen PSA apparatus is formed with two adsorbing columns where an adsorption step and a regeneration step are performed alternatively and periodically. The adsorption step is for adsorbing oxygen and conducting nitrogen to a product tank with the supply of compressed air from an air compressor, and the regeneration step for releasing the adsorbed gas after the adsorption step. The adsorbing columns are filled with a carbon molecular sieve (CMS) that selectively adsorbs oxygen as an adsorbent. The CMS adsorbs an oxygen/nitrogen amount of 50% of the saturated adsorption amount with a period TO/TN starting from oxygen/nitrogen supply, wherein TO is 5˜10 seconds and TN is larger than TO by more than 41 times.Type: ApplicationFiled: August 14, 2002Publication date: May 29, 2003Inventors: Masato Kawai, Akihiro Nakamura, Masayoshi Hayashida, Yoshinori Watanabe, Shinichi Marumo
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Patent number: 6475461Abstract: A halogen treatment is conducted comprising: a halogenation step wherein a halogenation heat treatment for preparing a halogenated carbonized charcoal is conducted in which the carbonized charcoal is brought into contact with halogen; and a dehalogenation step wherein a dehalogenation treatment is conducted in which a part of or all halogen atoms in the halogenated carbonized charcoal are eliminated. A porous carbonaceous material is obtained at a high yield, and the amounts of nitrogen, oxygen, carbon dioxide, and methane adsorbed by this porous carbonaceous material are large. When this porous carbonaceous material is used as an electrical double layer capacitor carbon, the electrostatic capacity is increased compared to conventional carbonaceous materials. Consequently, a carbonaceous material is obtained which has micopores and/or sub-micropores which are suitable for the adsorption of small molecules such as nitrogen, and for storage of electrochemical energy.Type: GrantFiled: November 27, 1996Date of Patent: November 5, 2002Assignee: Nippon Sanso CorporationInventors: Takushi Ohsaki, Akira Wakaizumi, Takashi Inui, Akihiro Nakamura, Katsuyoshi Yanagita, Masayoshi Hayashida
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Patent number: 5972834Abstract: It is possible to increase the amount of nitrogen generated per unit of adsorbent, raise the nitrogen yield, and reduce the manufacturing cost for nitrogen by using, as an adsorbent for the separation of nitrogen, molecular sieving carbon obtained by successively conducting a halogenation treatment, a dehalogenation treatment, and a pore adjustment treatment on a carbonized charcoal. By using activated carbon obtained by successively conducting a halogenation treatment, a dehalogenation treatment, and an activation treatment on a carbonized charcoal, as an adsorbent for carbon dioxide and methane, it is possible to improve the amount adsorbed.Type: GrantFiled: December 24, 1996Date of Patent: October 26, 1999Assignee: Nippon Sanso CorporationInventors: Takushi Ohsaki, Takashi Inui, Katsuyoshi Yanagita, Masayoshi Hayashida, Nobuyasu Tomita, Fusao Nakamura, Satoshi Sawaguchi, Akira Wakaizumi, Hiroyuki Miyake
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Patent number: 5968471Abstract: A process for producing a molecular sieve carbon, which comprises subjecting a cured product obtained by curing a raw material thermosetting resin to heat oxidation; pulverizing the oxidized product formed after the heat oxidation treatment; granulating the resulting pulverized product; subjecting the resulting granule to carbonization; subjecting the carbonized charcoal obtained in the carbonizing step to heat treatment; and adjusting the pore size of the heat-treated carbonized charcoal.Type: GrantFiled: March 18, 1997Date of Patent: October 19, 1999Assignee: Nippon Sanso CorporationInventors: Katsuyoshi Yanagita, Masayoshi Hayashida
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Patent number: 4420057Abstract: An air induction structure is designed for an air cleaner on an automobile furnished with an engine compartment in its front body and a grille at its front end through which the engine compartment is open to the outside. The air induction structure includes an obstructing member, which is located in a position in which the obstructing member is across the substantially straight path connecting the opening of an air intake duct, connected to the air cleaner, and the part of the grille in the same vertical longitudinal planes, with respect to the automobile, as the opening of the air intake duct, so that the obstructing member prevents air, drawn into the engine compartment through the part of the grille, from travelling straight into the opening of the air intake duct.Type: GrantFiled: August 20, 1981Date of Patent: December 13, 1983Assignee: Nissan Motor Company, LimitedInventors: Kazuaki Omote, Masayoshi Hayashida
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Patent number: 4090734Abstract: A reinforcement member for an automobile door is constructed of a central piece formed from a plate of a high tensile strength steel and two end pieces of a mild steel that is the same material as the material forming an inner panel of the automobile door. The two end pieces are secured to end portions of the central piece and formed with attachment areas, respectively, at which the reinforcement member is secured to the door inner panel.Type: GrantFiled: September 24, 1976Date of Patent: May 23, 1978Assignee: Nissan Motor Company, Ltd.Inventors: Sumio Inami, Kiyoshi Koike, Masayoshi Hayashida, Shigeyuki Yamaoka