Patents by Inventor Yuichi Tamaki
Yuichi Tamaki 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).
-
Patent number: 9825377Abstract: A conductive member of the present invention includes: a metallic conductive base material including a joining region to be joined to another conductive member when the conductive member is used; and a conductive-auxiliary-coating-agent layer for imparting conductivity and an oxidation preventing property to a joining section between the joining region and another conductive member when the conductive member is used, the conductive-auxiliary-coating-agent layer being formed by applying a conductive auxiliary coating agent to the joining region of the conductive base material, in which the joining region of the conductive base material has a surface roughness of 0.6 ?m or less in terms of an arithmetic mean roughness Ra specified in JISB0601 (1994).Type: GrantFiled: May 29, 2014Date of Patent: November 21, 2017Assignee: NIPPON LIGHT METAL COMPANY, LTD.Inventors: Yosuke Nishikawa, Manabu Okubo, Yuichi Tamaki, Kei Iwasaki
-
Patent number: 9765671Abstract: An engine exhaust treatment apparatus, which suppresses thermal damage to an electrothermal ignition apparatus, includes: an exhaust passage; an oxidation catalyst disposed in the exhaust passage; a combustible gas generator; a combustible gas supplying passage; a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part of the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; and an electrothermal ignition apparatus disposed in the combustible gas supplying passage. Heat of flaming combustion of the combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise the temperature of exhaust in the exhaust passage. A heat dissipation plate is attached to an outer projecting portion of the electrothermal ignition apparatus.Type: GrantFiled: March 4, 2014Date of Patent: September 19, 2017Assignee: KUBOTA CorporationInventors: Hideyuki Koyama, Tomoya Akitomo, Yuichi Tamaki, Ryutaro Komura
-
Patent number: 9416704Abstract: It is an object of the present invention to provide an exhaust gas treatment device of an engine capable of preventing matching surfaces of catalyst portions configuring a combustible gas catalyst from being thermally damaged. In the exhaust gas treatment device, combustible gas is produced by combustible gas generating catalyst, exhaust gas heated by combustion of combustible gas is supplied to an exhaust gas treatment portion, the combustible gas generating catalyst comprises an aggregate of a plurality of catalyst portions, each of the catalyst portions includes a matching surface with respect to adjacent one of the catalyst portions, a fastening ring is fitted over the combustible gas generating catalyst in which the matching surfaces of the adjacent catalyst portions are abutted against each other, and the matching surfaces of the adjacent catalyst portions are brought into tight contact with each other by a fastening force of the fastening ring.Type: GrantFiled: September 5, 2014Date of Patent: August 16, 2016Assignee: KUBOTA CorporationInventors: Yuichi Tamaki, Yoshikazu Takemoto, Takashi Onishi, Mitsugu Okuda, Tomoya Akitomo
-
Publication number: 20160064836Abstract: Provided is a conductive member that includes a joining section excellent in conductivity and oxidation preventing property, the conductive member being capable of stably keeping contact resistance low even in the case where a contact surface pressure is low when joined to another conductive member, and being capable of being joined to another conductive member simply and quickly.Type: ApplicationFiled: May 29, 2014Publication date: March 3, 2016Applicant: NIPPON LIGHT METAL COMPANY, LTD.Inventors: Yosuke NISHIKAWA, Manabu OKUBO, Yuichi TAMAKI, Kei IWASAKI
-
Patent number: 9200551Abstract: An exhaust treatment apparatus for an engine including a combustible gas supplying passage; a heat releasing port opened in an upstream side in the exhaust passage from the oxidation catalyst and in a downstream side in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat releasing port; an ignition apparatus beneath the heat releasing port, the heat of flaming combustion of combustible gas ignited by the ignition apparatus being supplied to the exhaust passage to raise the temperature of exhaust in the exhaust passage; a flame holding plate in a downstream side in the combustible gas supplying passage from the ignition apparatus, an exhaust guiding plate at the top portion of the flame holding plate, the exhaust guiding plate having an upward slope toward a downstream side in the exhaust passage.Type: GrantFiled: December 17, 2013Date of Patent: December 1, 2015Assignee: KUBOTA CorporationInventors: Mitsugu Okuda, Yoshikazu Takemoto, Takashi Onishi, Hozumi Ishida, Manabu Miyazaki, Yuichi Tamaki, Tomoya Akitomo, Katsuaki Arai
-
Publication number: 20150118120Abstract: It is an object of the present invention to provide an exhaust gas treatment device of an engine capable of preventing matching surfaces of catalyst portions configuring a combustible gas catalyst from being thermally damaged. In the exhaust gas treatment device, combustible gas is produced by combustible gas generating catalyst, exhaust gas heated by combustion of combustible gas is supplied to an exhaust gas treatment portion, the combustible gas generating catalyst comprises an aggregate of a plurality of catalyst portions, each of the catalyst portions includes a matching surface with respect to adjacent one of the catalyst portions, a fastening ring is fitted over the combustible gas generating catalyst in which the matching surfaces of the adjacent catalyst portions are abutted against each other, and the matching surfaces of the adjacent catalyst portions are brought into tight contact with each other by a fastening force of the fastening ring.Type: ApplicationFiled: September 5, 2014Publication date: April 30, 2015Inventors: Yuichi TAMAKI, Yoshikazu TAKEMOTO, Takashi ONISHI, Mitsugu OKUDA, Tomoya AKITOMO
-
Publication number: 20140290226Abstract: An engine exhaust treatment apparatus, which suppresses thermal damage to an electrothermal ignition apparatus, includes: an exhaust passage; an oxidation catalyst disposed in the exhaust passage; a combustible gas generator; a combustible gas supplying passage; a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part of the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; and an electrothermal ignition apparatus disposed in the combustible gas supplying passage. Heat of flaming combustion of the combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise the temperature of exhaust in the exhaust passage. A heat dissipation plate is attached to an outer projecting portion of the electrothermal ignition apparatus.Type: ApplicationFiled: March 4, 2014Publication date: October 2, 2014Applicant: KUBOTA CorporationInventors: Hideyuki KOYAMA, Tomoya AKITOMO, Yuichi TAMAKI, Ryutaro KOMURA
-
Publication number: 20140174061Abstract: An exhaust treatment apparatus for an engine including a combustible gas supplying passage; a heat releasing port opened in an upstream side in the exhaust passage from the oxidation catalyst and in a downstream side in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat releasing port; an ignition apparatus beneath the heat releasing port, the heat of flaming combustion of combustible gas ignited by the ignition apparatus being supplied to the exhaust passage to raise the temperature of exhaust in the exhaust passage; a flame holding plate in a downstream side in the combustible gas supplying passage from the ignition apparatus, an exhaust guiding plate at the top portion of the flame holding plate, the exhaust guiding plate having an upward slope toward a downstream side in the exhaust passage.Type: ApplicationFiled: December 17, 2013Publication date: June 26, 2014Applicant: KUBOTA CORPORATIONInventors: Mitsugu OKUDA, Yoshikazu TAKEMOTO, Takashi ONISHI, Hozumi ISHIDA, Manabu MIYAZAKI, Yuichi TAMAKI, Tomoya AKITOMO, Katsuaki ARAI
-
Patent number: 7854886Abstract: A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.Type: GrantFiled: October 23, 2007Date of Patent: December 21, 2010Assignees: Nippon Light Metal Co., Ltd., Nikkeikin Aluminum Core Technology Co., Ltd.Inventors: Yuichi Tamaki, Kazuto Sanada, Toshimasa Nishiyama
-
Publication number: 20090104470Abstract: A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.Type: ApplicationFiled: October 23, 2007Publication date: April 23, 2009Inventors: Hideki Suzuki, Kazuto Sanada, Yuichi Tamaki, Toshimasa Nishiyama, Hideki Honmou, Toshiaki Yamazaki
-
Publication number: 20090104066Abstract: A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.Type: ApplicationFiled: October 23, 2007Publication date: April 23, 2009Inventors: Yuichi Tamaki, Kazuto Sanada, Toshimasa Nishiyama
-
Patent number: D685820Type: GrantFiled: January 27, 2012Date of Patent: July 9, 2013Assignee: Kubota CorporationInventors: Mitsugu Okuda, Toshio Nakahira, Takashi Onishi, Yuichi Tamaki