Patents by Inventor Eisuke Nishitani
Eisuke Nishitani 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: 20140300665Abstract: A recording apparatus including an ink tank and a recording head having a flow path forming portion that has an ejection orifice plate having plural ink ejection orifices and a liquid chamber provided for each orifice to supply ink to the orifices, and an energy generating element for ejecting ink in the chamber. A surface layer of the flow path forming portion opposes to the outside of the plate. An opening is provided opposing to the orifices in the surface layer. An ink reservoir is provided between the plate and the opening. A circulation flow path communicating with the ink reservoir is provided. The area of the opening is larger than that of the orifice. Both ends of the circulation flow path are respectively connected to inlet and outlet portions connected to the circulation flow path. The inlet and outlet portions and liquid chamber are connected to the ink tank.Type: ApplicationFiled: June 19, 2014Publication date: October 9, 2014Inventors: Ryota Kashu, Naoto Sasagawa, Seiichiro Karita, Takatsuna Aoki, Shingo Okushima, Eisuke Nishitani
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Patent number: 8833909Abstract: A liquid ejection head including: includes an ejection orifice for ejecting liquid, a pressure chamber communicating with the ejection orifice, a flow path for supplying the liquid to the pressure chamber, and a first heat-generating element and a second heat-generating element for generating energy to be used for ejecting the liquid. The first heat-generating element is arranged in the pressure chamber before the second heat-generating element with respect to a supply direction of the liquid from the flow path to the pressure chamber. A portion between the first heat-generating element and the second heat-generating element is located within a projection of an opening of the ejection orifice, when viewed from a direction in which the liquid is ejected from the ejection orifice.Type: GrantFiled: July 27, 2012Date of Patent: September 16, 2014Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Toru Yamane, Tomoyuki Inoue
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Patent number: 8794746Abstract: A recording apparatus including an ink tank and a recording head having a flow path forming portion that has an ejection orifice plate having plural ink ejection orifices and a liquid chamber provided for each orifice to supply ink to the orifices, and an energy generating element for ejecting ink in the chamber. A surface layer of the flow path forming portion opposes to the outside of the plate. An opening is provided opposing to the orifices in the surface layer. An ink reservoir is provided between the plate and the opening. A circulation flow path communicating with the ink reservoir is provided. The area of the opening is larger than that of the orifice. Both ends of the circulation flow path are respectively connected to inlet and outlet portions connected to the circulation flow path. The inlet and outlet portions and liquid chamber are connected to the ink tank.Type: GrantFiled: July 17, 2013Date of Patent: August 5, 2014Assignee: Canon Kabushiki KaishaInventors: Ryota Kashu, Naoto Sasagawa, Seiichiro Karita, Takatsuna Aoki, Shingo Okushima, Eisuke Nishitani
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Patent number: 8794745Abstract: A liquid ejection method is effected in a liquid ejection head that includes an ejection orifice for ejecting a liquid, a flow path for supplying the liquid from a liquid supply port to the ejection orifice, and a heat generating element. The heat generating element is rectangular with a long-side to short-side ratio of 2.5 or more for generating thermal energy used to eject the liquid, and a longitudinal direction of the heat generating element is arranged along an extending direction of the flow path. An end portion of the heat generating element on a downstream side with respect to a liquid flowing direction within the flow path is located between an end portion of the ejection orifice on the downstream side and an end portion of the ejection orifice on an upstream side when viewed from a direction in which the liquid is ejected from the ejection orifice.Type: GrantFiled: January 25, 2012Date of Patent: August 5, 2014Assignee: Canon Kabushiki KaishaInventors: Toru Yamane, Tomoyuki Inoue, Eisuke Nishitani, Kenji Yabe, Atsushi Sakamoto
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Publication number: 20140176630Abstract: An ink jet recording apparatus including an ink tank for storing an ink, a flow path member communicating with the ink tank and a recording head for ejecting the ink supplied from the ink tank through the flow path member, wherein the apparatus further includes a light detection unit which applies light to at least one of the ink in the ink tank and the ink in the flow path member and detects the intensity of back-scattered light of the applied light, and an image density correction unit which corrects the density of an image to be recorded on the basis of the intensity of the back-scattered light which has been detected by the light detection unit.Type: ApplicationFiled: December 3, 2013Publication date: June 26, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Keiichirou Takeuchi, Koichiro Nakazawa, Fumihiro Goto, Eisuke Nishitani, Takumi Otani, Kanako Soma
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Patent number: 8678554Abstract: In a liquid discharge head substrate having a connection line connected to a plurality of energy generating elements, and arranged between adjacent energy generating elements, a distance between the adjacent energy generating elements, between which the connection line is not arranged, is provided to be narrower than a distance of a portion where the connection line is provided.Type: GrantFiled: January 19, 2012Date of Patent: March 25, 2014Assignee: Canon Kabushiki KaishaInventors: Tomoyuki Inoue, Toru Yamane, Eisuke Nishitani
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Publication number: 20130300811Abstract: A recording apparatus including an ink tank and a recording head having a flow path forming portion that has an ejection orifice plate having plural ink ejection orifices and a liquid chamber provided for each orifice to supply ink to the orifices, and an energy generating element for ejecting ink in the chamber. A surface layer of the flow path forming portion opposes to the outside of the plate. An opening is provided opposing to the orifices in the surface layer. An ink reservoir is provided between the plate and the opening. A circulation flow path communicating with the ink reservoir is provided. The area of the opening is larger than that of the orifice. Both ends of the circulation flow path are respectively connected to inlet and outlet portions connected to the circulation flow path. The inlet and outlet portions and liquid chamber are connected to the ink tank.Type: ApplicationFiled: July 17, 2013Publication date: November 14, 2013Inventors: Ryota Kashu, Naoto Sasagawa, Seiichiro Karita, Takatsuna Aoki, Shingo Okushima, Eisuke Nishitani
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Patent number: 8517518Abstract: A recording apparatus including an ink tank and a recording head having a flow path forming portion that has an ejection orifice plate having plural ink ejection orifices and a liquid chamber provided for each orifice to supply ink to the orifices, and an energy generating element for ejecting ink in the chamber. A surface layer of the flow path forming portion opposes to the outside of the plate. An opening is provided opposing to the orifices in the surface layer. An ink reservoir is provided between the plate and the opening. A circulation flow path communicating with the ink reservoir is provided. The area of the opening is larger than that of the orifice. Both ends of the circulation flow path are respectively connected to inlet and outlet portions connected to the circulation flow path. The inlet and outlet portions and liquid chamber are connected to the ink tank.Type: GrantFiled: November 2, 2011Date of Patent: August 27, 2013Assignee: Canon Kabushiki KaishaInventors: Ryota Kashu, Naoto Sasagawa, Seiichiro Karita, Takatsuna Aoki, Shingo Okushima, Eisuke Nishitani
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Patent number: 8481434Abstract: To remove the deposit including a high dielectric constant film deposited on an inside of a processing chamber, by using a cleaning gas activated only by heat. The method includes the steps of: loading a substrate or a plurality of substrates into the processing chamber; performing processing to deposit the high dielectric constant film on the substrate by supplying processing gas into the processing chamber; unloading the processed substrate from the inside of the processing chamber; and cleaning the inside of the processing chamber by supplying a halide gas and an oxygen based gas into the processing chamber, and removing the deposit including the high dielectric constant film deposited on the inside of the processing chamber, and in the step of cleaning the inside of the processing chamber, the concentration of the oxygen based gas in the halide gas and the oxygen based gas is set to be less than 7%.Type: GrantFiled: July 8, 2008Date of Patent: July 9, 2013Assignee: Hitachi Kokusai Electric Inc.Inventors: Hironobu Miya, Eisuke Nishitani, Yuji Takebayashi, Masanori Sakai, Hirohisa Yamazaki, Toshinori Shibata, Minoru Inoue
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Patent number: 8474951Abstract: A liquid ejection head includes: a first and a second common liquid chamber formed in a substrate; a first nozzle array in which short and long nozzles are connected to the first common liquid chamber and alternately arranged on one side of the chamber; a second nozzle array in which short and long nozzles are connected to the first common liquid chamber and alternately arranged on the other side; a third nozzle array in which short and long nozzles are connected to the second common liquid chamber and alternately arranged on one side of the chamber; and a fourth nozzle array in which short and long nozzles are connected to the second common liquid chamber and alternately arranged on the other side; wherein the long and short nozzles formed on the one side and the long and short nozzles formed on the other side are disposed within a pitch P.Type: GrantFiled: July 5, 2011Date of Patent: July 2, 2013Assignee: Canon Kabushiki KaishaInventors: Tomoyuki Inoue, Ken Tsuchii, Eisuke Nishitani, Toru Yamane
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Publication number: 20130050349Abstract: Provided is a liquid ejection head, including: an ejection orifice for ejecting liquid; a pressure chamber communicating with the ejection orifice; a flow path for supplying the liquid to the pressure chamber; and a first heat-generating element and a second heat-generating element for generating energy to be used for ejecting the liquid, which are arranged in the pressure chamber in the mentioned order in a supply direction of the liquid from the flow path to the pressure chamber, in which a portion between the first heat-generating element and the second heat-generating element is located in an opening of the ejection orifice, when viewed from a direction in which the liquid is ejected from the ejection orifice.Type: ApplicationFiled: July 27, 2012Publication date: February 28, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Eisuke Nishitani, Toru Yamane, Tomoyuki Inoue
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Publication number: 20120258565Abstract: There is provided a substrate processing apparatus, comprising: a processing chamber in which a plurality of substrates are housed, the substrate having thereon a lamination film composed of any one of copper-indium, copper-gallium, or copper-indium-gallium; a reaction tube formed so as to constitute the processing chamber; a gas supply tube configured to introduce elemental selenium-containing gas or elemental sulfur-containing gas to the processing chamber; an exhaust tube configured to exhaust an atmosphere in the processing chamber; and a heating section provided so as to surround the reaction tube, wherein a porous coating film having a void rate of 5% to 15% mainly composed of a mixture of chromium oxide (CrxOy:x, y are arbitrary integer of 1 or more) silica is formed on a surface exposed to at least the elemental selenium-containing gas or the elemental sulfur-containing gas, out of the surface of the reaction tube on the processing chamber side.Type: ApplicationFiled: March 27, 2012Publication date: October 11, 2012Applicants: TOCALO CO., LTD., HITACHI KOKUSAI ELECTRIC INC.Inventors: Eisuke NISHITANI, Yasuo KUNII, Kazuyuki TOYODA, Kosaku HIYAMA, Tomohiro NAKASUJI, Tatsuya HAMAGUCHI, Kiyoshi MIYAJIMA
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Publication number: 20120258018Abstract: There is provided a substrate procession apparatus, comprising: a processing chamber configured to house a plurality of substrates with a laminated film formed thereon which is composed of any one of copper-indium, copper-gallium, or copper-indium-gallium; a reaction tube formed so as to constitute the processing chamber; a gas supply tube configured to introduce elemental selenium-containing gas or elemental sulfur-containing gas to the processing chamber; an exhaust tube configured to exhaust an atmosphere in the processing chamber; heating section provided so as to surround the reaction tube; and a fan configured to forcibly circulate the atmosphere in the processing chamber in a short-side direction of the plurality of glass substrates, on surfaces of the plurality of glass substrates.Type: ApplicationFiled: March 22, 2012Publication date: October 11, 2012Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Eisuke NISHITANI, Yasuo KUNII, Kazuyuki TOYODA, Hidenari YOSHIDA, Mitsunori ISHISAKA
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Publication number: 20120258566Abstract: There is provide a substrate processing apparatus, comprising: a processing chamber configured to house a plurality of substrates with a laminated film formed thereon which is composed of any one of copper-indium, copper-gallium, or copper-indium-gallium; a gas supply tube configured to introduce elemental selenium-containing gas or elemental sulfur-containing gas into the processing chamber; an exhaust tube configured to exhaust an atmosphere in the processing chamber; and a heating section provided so as to surround the reaction tube, wherein a base of the reaction tube is made of a metal material.Type: ApplicationFiled: March 22, 2012Publication date: October 11, 2012Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Eisuke NISHITANI, Yasuo KUNII, Kazuyuki TOYODA, Hironobu MIYA
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Publication number: 20120200641Abstract: A liquid ejection head including an ejection orifice for ejecting a liquid; a flow path for supplying the liquid from a liquid supply port holding the liquid to the ejection orifice; and a heat generating element of a rectangular form with a long-side to short-side ratio of 2.5 or more for generating thermal energy used to eject the liquid, a longitudinal direction of the heat generating element being arranged along an extending direction of the flow path. An end portion of the heat generating element on a downstream side of a liquid flowing direction within the flow path is located between an end portion of the ejection orifice on the downstream side and an end portion of the ejection orifice on an upstream side when viewed from a direction to which the liquid is ejected from the ejection orifice.Type: ApplicationFiled: January 25, 2012Publication date: August 9, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Toru Yamane, Tomoyuki Inoue, Eisuke Nishitani, Kenji Yabe, Atsushi Sakamoto
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Publication number: 20120188310Abstract: In a liquid discharge head substrate having a connection line connected to a plurality of energy generating elements, and arranged between adjacent energy generating elements, a distance between the adjacent energy generating elements, between which the connection line is not arranged, is provided to be narrower than a distance of a portion where the connection line is provided.Type: ApplicationFiled: January 19, 2012Publication date: July 26, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Tomoyuki Inoue, Toru Yamane, Eisuke Nishitani
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Patent number: 8205979Abstract: A liquid ejection head includes ejection orifices allowing liquid to be ejected therethrough, passages communicating with the ejection orifices and the pressure chambers each accommodating an energy generating element generating energy for ejecting the liquid therein, a supply port supplying the liquid to the passages, and a filter including substantially cylindrical members between the supply port and passages and having openings. Each of the ejection orifices has a substantially circular cross section having larger and smaller diameters substantially perpendicularly to its liquid ejecting direction. Each of the openings has a substantially rectangular cross section having longer and shorter sides substantially perpendicularly to its liquid supplying direction. The relationships D1>L1, D1<D2, and D2>L2?D1 are satisfied where D1 is the smaller diameter, D2 is the larger diameter, L1 is the shorter side, and L2 is the longer side.Type: GrantFiled: December 11, 2009Date of Patent: June 26, 2012Assignee: Canon Kabushiki KaishaInventors: Eisuke Nishitani, Toru Yamane, Tomoyuki Inoue, Ken Tsuchii
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Publication number: 20120113197Abstract: A recording apparatus including an ink tank and a recording head having a flow path forming portion that has an ejection orifice plate having plural ink ejection orifices and a liquid chamber provided for each orifice to supply ink to the orifices, and an energy generating element for ejecting ink in the chamber. A surface layer of the flow path forming portion opposes to the outside of the plate. An opening is provided opposing to the orifices in the surface layer. An ink reservoir is provided between the plate and the opening. A circulation flow path communicating with the ink reservoir is provided. The area of the opening is larger than that of the orifice. Both ends of the circulation flow path are respectively connected to inlet and outlet portions connected to the circulation flow path. The inlet and outlet portions and liquid chamber are connected to the ink tank.Type: ApplicationFiled: November 2, 2011Publication date: May 10, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Ryota Kashu, Naoto Sasagawa, Seiichiro Karita, Takatsuna Aoki, Shingo Okushima, Eisuke Nishitani
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Publication number: 20120019594Abstract: A liquid ejection head includes: a first and a second common liquid chamber formed in a substrate; a first nozzle array in which short and long nozzles are connected to the first common liquid chamber and alternately arranged on one side of the chamber; a second nozzle array in which short and long nozzles are connected to the first common liquid chamber and alternately arranged on the other side; a third nozzle array in which short and long nozzles are connected to the second common liquid chamber and alternately arranged on one side of the chamber; and a fourth nozzle array in which short and long nozzles are connected to the second common liquid chamber and alternately arranged on the other side; wherein the long and short nozzles formed on the one side and the long and short nozzles formed on the other side are disposed within a pitch P.Type: ApplicationFiled: July 5, 2011Publication date: January 26, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Tomoyuki Inoue, Ken Tsuchii, Eisuke Nishitani, Toru Yamane
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Publication number: 20100149293Abstract: A liquid ejection head includes ejection orifices allowing liquid to be ejected therethrough, passages communicating with the ejection orifices and the pressure chambers each accommodating an energy generating element generating energy for ejecting the liquid therein, a supply port supplying the liquid to the passages, and a filter including substantially cylindrical members between the supply port and passages and having openings. Each of the ejection orifices has a substantially circular cross section having larger and smaller diameters substantially perpendicularly to its liquid ejecting direction. Each of the openings has a substantially rectangular cross section having longer and shorter sides substantially perpendicularly to its liquid supplying direction. The relationships D1>L1, D1<D2, and D2>L2?D1 are satisfied where D1 is the smaller diameter, D2 is the larger diameter, L1 is the shorter side, and L2 is the longer side.Type: ApplicationFiled: December 11, 2009Publication date: June 17, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Eisuke Nishitani, Toru Yamane, Tomoyuki Inoue, Ken Tsuchii