Patents by Inventor Ken Nagashima
Ken Nagashima 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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Catalyst composition for exhaust gas purification and exhaust gas purifying catalyst for automobiles
Patent number: 9339794Abstract: The present invention is to provide a catalyst composition for exhaust gas purification, which is superior in purification performance for nitrogen oxides (NOx), carbon monoxide (CO) and hydrocarbons (HC) in exhaust gas to be discharged from an internal combustion engine of a gasoline vehicle or the like; and an catalyst for exhaust gas purification for automobiles. The present invention is a catalyst composition for exhaust gas purification for purifying nitrogen oxides, carbon monoxide, and hydrocarbons in exhaust gas, which includes a catalyst composition wherein rhodium is supported, together with an ?-alumina particle, on a zirconia-type base material, characterized in that average particle size of the ?-alumina particle is 10 nm to 1 ?m, and also is smaller than average particle size of the zirconia (ZrO2)-type base material.Type: GrantFiled: May 28, 2013Date of Patent: May 17, 2016Assignee: N.E. CHEMCAT CORPORATIONInventor: Ken Nagashima -
CATALYST COMPOSITION FOR EXHAUST GAS PURIFICATION AND EXHAUST GAS PURIFYING CATALYST FOR AUTOMOBILES
Publication number: 20150111727Abstract: The present invention is to provide a catalyst composition for exhaust gas purification, which is superior in purification performance for nitrogen oxides (NOx), carbon monoxide (CO) and hydrocarbons (HC) in exhaust gas to be discharged from an internal combustion engine of a gasoline vehicle or the like; and an catalyst for exhaust gas purification for automobiles. The present invention is a catalyst composition for exhaust gas purification for purifying nitrogen oxides, carbon monoxide, and hydrocarbons in exhaust gas, which includes a catalyst composition wherein rhodium is supported, together with an ?-alumina particle, on a zirconia-type base material, characterized in that average particle size of the ?-alumina particle is 10 nm to 1 ?m, and also is smaller than average particle size of the zirconia (ZrO2)-type base material.Type: ApplicationFiled: May 28, 2013Publication date: April 23, 2015Applicant: N.E. CHEMCAT CORPORATIONInventor: Ken Nagashima -
Publication number: 20140329669Abstract: Disclosed are alumina materials including a barium sulfate, catalyst or adsorbent using the same, in particular, catalyst for exhaust gas purification superior in NOx purification performance, suitable as a catalyst for purifying harmful substances included in exhaust gas discharged from an internal combustion engine of a gasoline vehicle, a diesel vehicle. An alumina material containing a barium sulfate in an amount of 5 to 70% by mass to alumina, wherein average particle size of barium sulfate dispersing in the alumina material is 4 ?m or smaller, average particle size of alumina is 50 ?m or smaller, and BET specific surface area of the alumina material is 20 to 250 m2/g; a catalyst for exhaust gas purification using the alumina material including a barium sulfate. It is preferable that the alumina material including a barium sulfate is coated onto an integrated structure-type carrier, as a catalyst layer.Type: ApplicationFiled: December 5, 2012Publication date: November 6, 2014Applicant: N.E. CHEMCAT CORPORATIONInventors: Takehiro Fujimura, Yoshinori Takahashi, Ken Nagashima, Akito Takayama, Yasuharu Kanno
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Patent number: 6657526Abstract: There is provided a power lead for a superconductive magnet capable of controlling the invasion of heat to liquid helium for storing superconductive coils therein and of sufficiently feeding power to the superconductive coils. The power lead for a superconductive magnet of a superconductor magneto unit for supplying a current to the superconductive coils which are cooled at a liquid helium temperature through a radiant heat shielded section which is cooled at a liquid nitrogen temperature, wherein at least a part of sections positioned inside the radiant heat shielded section of a current lead member of the superconductive magnet comprises a high temperature oxide superconductor bulk body having a critical temperature exceeding a liquid nitrogen temperature. In this case, it is preferable to apply a resin impregnation treatment to the bulk body to enforce the high temperature oxide superconductor bulk body section.Type: GrantFiled: December 21, 2001Date of Patent: December 2, 2003Assignees: International Superconductivity Technology Center, Railway Technical Research InstituteInventors: Ken Nagashima, Masaru Tomita, Kaoru Nemoto, Toshiki Herai, Masato Murakami
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Publication number: 20020132738Abstract: There is provided a power lead for a superconductive magnet capable of controlling the invasion of heat to liquid helium for storing superconductive coils therein and of sufficiently feeding power to the superconductive coils. The power lead for a superconductive magnet of a superconductor magneto unit for supplying a current to the superconductive coils which are cooled at a liquid helium temperature through a radiant heat shielded section which is cooled at a liquid nitrogen temperature, wherein at least a part of sections positioned inside the radiant heat shielded section of a current lead member of the superconductive magnet comprises a high temperature oxide superconductor bulk body having a critical temperature exceeding a liquid nitrogen temperature. In this case, it is preferable to apply a resin impregnation treatment to the bulk body to enforce the high temperature oxide superconductor bulk body section.Type: ApplicationFiled: December 21, 2001Publication date: September 19, 2002Inventors: Ken Nagashima, Masaru Tomita, Kaoru Nemoto, Toshiki Herai, Masato Murakami
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Patent number: 6313725Abstract: The invention is to establish means of producing easily and at low cost “a coupled body of superconducting magnets”, comprised of multi-pole bulk superconducting magnets lined up such that the polarities thereof alternately vary so as to cause a magnetic field gradient to occur. The magnetizing method for producing a coupled body comprised of multi-pole bulk superconducting magnets with respective polarities varying comprises the steps of coupling adjacent members for bulk superconducting magnets of a plurality of members for bulk superconducting magnets with each other in such a way as to be freely superposable, foldable, and unfoldable, superposing all the members for the bulk superconducting magnets on top of one after another, and applying a magnetizing process thereto in as superposed state, and unfolding alternately and juxtaposing the respective bulk superconducting magnets as superposed after the magnetizing process as shown in FIG. 1(A) to FIG. 1(D).Type: GrantFiled: September 22, 2000Date of Patent: November 6, 2001Assignees: Railway Technical Research Institute, International Superconductivity Technology CenterInventors: Ken Nagashima, Masato Murakami, Takeshi Miyamoto, Atsuyuki Kobayashi, Osami Tsukamoto
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Patent number: 5997455Abstract: A tool clamp mechanism includes a hollow spindle in which a tool can be inserted, the spindle having at least one slot which is axially elongated, a draw bar movably provided in the spindle, and a spindle head which rotatably supports the spindle. A drive ring is provided around the spindle. The drive ring and the draw bar are connected by a connecting pin which penetrates the drive ring and the draw bar through the slot of the spindle. A pusher lever is provided to the spindle head, which urges the drive ring so that the draw bar releases the tool. The drive ring has a contact surface which the pusher lever abuts. The contact surface is positioned ahead of the connecting pin in a pushing direction of the pusher lever.Type: GrantFiled: July 21, 1998Date of Patent: December 7, 1999Assignee: Brother Kogyo Kabushiki KaishaInventors: Nobuyuki Matsuoka, Ken Nagashima, Narihiko Hashimoto
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Patent number: 5958843Abstract: A bulk superconductor is produced by subjecting REBa.sub.2 Cu.sub.3 O.sub.y oxide to oxygen annealing after many holes have been formed in the oxide body.Type: GrantFiled: September 5, 1997Date of Patent: September 28, 1999Assignees: International Superconductivity Technology Center, Railway Technical Research InstituteInventors: Naomichi Sakai, Mikio Takahashi, Ken Nagashima, Masato Murakami
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Patent number: 5920246Abstract: A composite material having a plurality of sections integrated into a unitary structure and each including a bulk of a superconductive metal oxide of RE--Ba--Cu--O wherein RE represents a rare earth element, the bulk of each of the sections having pinning centers and capable of trapping a magnetic field. A first one of the sections has a superconductive current density different from that of a second one of the sections. The composite material may be produced by assembling preformed respective sections into a unitary structure or by immersing one of the sections in a solution to grow crystal of Y--Ba--Cu--O superconductive on that section, followed by trimming.Type: GrantFiled: March 19, 1997Date of Patent: July 6, 1999Assignees: International Superconductivity Technolgy Center, Railway Technical Research InstituteInventors: Ken Nagashima, Naomichi Sakai, Sang-Im Yoo, Hiroyuki Fujimoto, Masato Murakami
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Patent number: 5726325Abstract: The present invention relates to tricyclic compounds represented by general formula (I) which are useful as therapeutic agents for urinary incontinence: ##STR1## wherein R.sup.1 represents hydrogen and the like; --X.sup.1 --X.sup.2 --X.sup.3 -- represents --CR.sup.2 .dbd.CR.sup.3 --CR.sup.4 .dbd.CR.sup.5 -- (wherein R.sup.2, R.sup.3, R.sup.4, and R.sup.5 represent hydrogen and the like) and the like; and Y represents --CH.sub.2 O-- and the like.Type: GrantFiled: June 6, 1997Date of Patent: March 10, 1998Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Makoto Yoshida, Shin-ichi Sasaki, Shigeru Aono, Shigeki Fujiwara, Haruki Takai, Tsuyoshi Yamagata, Ken Nagashima, Akira Karasawa
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Patent number: 5661147Abstract: The present invention relates to imidazoquinazoline derivatives represented by the general formula (I): ##STR1## or pharmacologically acceptable salts thereof. The compounds of the present invention have strong and selective cGMP-specific PDE inhibitory activity and are useful for treating or ameliorating cardiovascular diseases such as thrombosis, angina pectoris, hypertension, arterial sclerosis and the like, as well as asthma and the like.Type: GrantFiled: April 26, 1995Date of Patent: August 26, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Daisuke Machii, Kenji Matsuno, Iwao Kinoshita, Yuji Nomoto, Haruki Takai, Tetsuji Ohno, Ken Nagashima, Tomoko Ishikawa, Koji Yamada, Michio Ichimura, Hiroshi Kase
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Patent number: 5575155Abstract: A cooling system includes a cold-accumulating refrigerator, and a cooling circuit. The cold-accumulating refrigerator includes a regenerator. The cooling circuit includes a main circuit, and a branched circuit. The main circuit includes a counterflow heat exchanger. The branched circuit is branched from an upstream portion of the main circuit, and joined to a downstream portion thereof, thereby reducing one of the flows of a refrigerant, flowing in a high-pressure-side passage and a low-pressure-side passage which are disposed in the counterflow heat exchanger, with respect to the other one of the flows. Moreover, the branched circuit includes a heat exchanger, and the heat exchanger is thermally brought into contact with a portion of the regenerator whose temperature is varied from a high temperature to a low temperature by another refrigerant flowing therein.Type: GrantFiled: August 17, 1995Date of Patent: November 19, 1996Assignees: Aisin Seiki Kabushiki Kaisha, Railway Technical Research InstituteInventors: Hideo Mita, Katsunobu Kanda, Hideo Misawa, Toshiki Herai, Ken Nagashima