Patents by Inventor Nozomu Kitajima
Nozomu Kitajima 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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Patent number: 9786404Abstract: There is provided a metal foil suitable for an electrode substrate for an electronic element, which makes it possible to suppress oxidation of the ultra-smooth surface and also prevent roll scratches when wound in a roll. The metal foil of the present invention is made of copper or copper alloy. The front surface of the metal foil has an ultra-smooth surface profile having an arithmetic mean roughness Ra of 30 nm or less as determined in accordance with JIS B 0601-2001. The back surface of the metal has a concave-dominant surface profile having a Pv/Pp ratio of 1.5 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp of a profile curve as determined in a rectangular area of 181 ?m by 136 ?m in accordance with JIS B 0601-2001.Type: GrantFiled: April 24, 2013Date of Patent: October 10, 2017Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
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Patent number: 9508951Abstract: There is provided an electrode foil that can form an organic electroluminescent device having a high external quantum efficiency despite the presence of the organic nitrogen compound at the interface of a metal foil and a reflective layer. The electrode foil of the invention includes a metal foil made of copper or copper alloy and a reflective layer provided on at least one surface of the metal foil. The electrode foil has an organic nitrogen compound at the interface between the metal foil and the reflective layer in such an amount that the ratio of the number of counts on the C—N bond to the total number of counts on the copper and the C—N bond: CN/(CN+Cu) in the organic nitrogen compound is 0.4 or less determined by time-of-flight secondary ion mass spectrometric analysis (TOF-SIMS) of the interface.Type: GrantFiled: June 7, 2013Date of Patent: November 29, 2016Assignees: Mitsui Mining & Smelting Co., Ltd., Panasonic CorporationInventors: Yoshinori Matsuura, Toshimi Nakamura, Masaharu Myoi, Nozomu Kitajima, Mitsuo Yaguchi
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Patent number: 9490440Abstract: An electrode foil which has both the functions of a supporting base material and a reflective electrode and also has superior thermal conductivity; and an organic device using the same are provided. The electrode foil comprises a metal foil and a reflective layer provided directly on the metal foil.Type: GrantFiled: June 10, 2014Date of Patent: November 8, 2016Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
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Publication number: 20150207096Abstract: There is provided an electrode foil that can form an organic electroluminescent device having a high external quantum efficiency despite the presence of the organic nitrogen compound at the interface of a metal foil and a reflective layer. The electrode foil of the invention includes a metal foil made of copper or copper alloy and a reflective layer provided on at least one surface of the metal foil. The electrode foil has an organic nitrogen compound at the interface between the metal foil and the reflective layer in such an amount that the ratio of the number of counts on the C—N bond to the total number of counts on the copper and the C—N bond: CN/(CN+Cu) in the organic nitrogen compound is 0.4 or less determined by time-of-flight secondary ion mass spectrometric analysis (TOF-SIMS) of the interface.Type: ApplicationFiled: June 7, 2013Publication date: July 23, 2015Inventors: Yoshinori Matsuura, Toshimi Nakamura, Masaharu Myoi, Nozomu Kitajima, Mitsuo Yaguchi
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Publication number: 20150194232Abstract: There is provided a metal foil suitable for an electrode substrate for an electronic element, which makes it possible to suppress oxidation of the ultra-smooth surface and also prevent roll scratches when wound in a roll. The metal foil of the present invention is made of copper or copper alloy. The front surface of the metal foil has an ultra-smooth surface profile having an arithmetic mean roughness Ra of 30 nm or less as determined in accordance with JIS B 0601-2001. The back surface of the metal has a concave-dominant surface profile having a Pv/Pp ratio of 1.5 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp of a profile curve as determined in a rectangular area of 181 ?m by 136 ?m in accordance with JIS B 0601-2001.Type: ApplicationFiled: April 24, 2013Publication date: July 9, 2015Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
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Patent number: 9029885Abstract: There is provided an electrode foil, which can show superior light scattering, while preventing short circuit between electrodes. The electrode foil of the present invention comprises a metal foil having a thickness of from 1 ?m to 250 ?m, wherein the electrode foil comprises, on at least one outermost surface thereof, a light-scattering surface having a Pv/Pp ratio of 2.0 or higher, wherein the Pv/Pp ratio is a ratio of a maximum profile valley depth Pv of a profile curve to a maximum profile peak height Pp of the profile curve as measured in a rectangular area of 181 ?m×136 ?m in accordance with JIS B 0601-2001.Type: GrantFiled: December 26, 2012Date of Patent: May 12, 2015Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
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Publication number: 20150001519Abstract: An electrode foil functioning as both a supporting substrate and an electrode and suitable for low-cost high-efficiency production of flexible electronic devices having functionality on their both sides is provided. An electrode foil of the present invention comprises a metal foil, wherein the metal foil has a thickness of 1 to 250 ?m, and wherein the outermost surfaces on both sides of the electrode foil are ultra-smooth surfaces each having an arithmetic mean roughness Ra of 30.0 nm or less as determined in accordance with JIS B 0601-2001.Type: ApplicationFiled: July 27, 2012Publication date: January 1, 2015Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
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Publication number: 20140284589Abstract: An electrode foil which has both the functions of a supporting base material and a reflective electrode and also has superior thermal conductivity; and an organic device using the same are provided. The electrode foil comprises a metal foil and a reflective layer provided directly on the metal foil.Type: ApplicationFiled: June 10, 2014Publication date: September 25, 2014Inventors: Yoshinori MATSUURA, Nozomu KITAJIMA, Naohiko ABE
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Patent number: 8816338Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.Type: GrantFiled: March 1, 2011Date of Patent: August 26, 2014Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
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Patent number: 8803135Abstract: An electrode foil, which has both the functions of a supporting base material and a reflective electrode, and also has superior thermal conductivity, and an organic device using the same are provided. The electrode foil comprises a metal foil and a reflective layer provided directly on the metal foil.Type: GrantFiled: March 1, 2011Date of Patent: August 12, 2014Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
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Patent number: 8791565Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.Type: GrantFiled: October 25, 2013Date of Patent: July 29, 2014Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
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Publication number: 20140061701Abstract: There is provided an electrode foil, which can show superior light scattering, while preventing short circuit between electrodes. The electrode foil of the present invention comprises a metal foil having a thickness of from 1 ?m to 250 ?m, wherein the electrode foil comprises, on at least one outermost surface thereof, a light-scattering surface having a Pv/Pp ratio of 2.0 or higher, wherein the Pv/Pp ratio is a ratio of a maximum profile valley depth Pv of a profile curve to a maximum profile peak height Pp of the profile curve as measured in a rectangular area of 181 ?m×136 ?m in accordance with JIS B 0601-2001.Type: ApplicationFiled: December 26, 2012Publication date: March 6, 2014Applicant: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Toshimi Nakamura, Masaharu Myoi
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Publication number: 20140048791Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.Type: ApplicationFiled: October 25, 2013Publication date: February 20, 2014Applicant: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori MATSUURA, Nozomu KITAJIMA, Naohiko ABE
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Patent number: 8586976Abstract: There are provided an electrode foil which has both the functions of a supporting base material and a reflective electrode and also has a superior thermal conductivity and heat resistance; and an organic device using the same. The electrode foil comprises a metal foil; a diffusion prevention layer for preventing diffusion of metal derived from the metal foil, the diffusion prevention layer being provided directly on the metal foil; and a reflective layer provided directly on the diffusion prevention layer.Type: GrantFiled: September 8, 2011Date of Patent: November 19, 2013Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima
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Publication number: 20130069042Abstract: There are provided an electrode foil which has both the functions of a supporting base material and a reflective electrode and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil and a reflective layer provided directly on the metal foil.Type: ApplicationFiled: March 1, 2011Publication date: March 21, 2013Applicant: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
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Publication number: 20130048976Abstract: There are provided an electrode foil which has all the functions of a supporting base material, an electrode and a reflective layer and also has a superior thermal conductivity; and an organic device using the same. The electrode foil comprises a metal foil, wherein the electrode foil has at least one outermost surface which is an ultra-smooth surface having an arithmetic average roughness Ra of 10.0 nm or less as measured in accordance with JIS B 0601-2001.Type: ApplicationFiled: March 1, 2011Publication date: February 28, 2013Applicant: MITSUI MINING & SMELTING CO., LTD.Inventors: Yoshinori Matsuura, Nozomu Kitajima, Naohiko Abe
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Publication number: 20120280217Abstract: There are provided an electrode foil which has both the functions of a supporting base material and a reflective electrode and also has a superior thermal conductivity and heat resistance; and an organic device using the same. The electrode foil comprises a metal foil; a diffusion prevention layer for preventing diffusion of metal derived from the metal foil, the diffusion prevention layer being provided directly on the metal foil; and a reflective layer provided directly on the diffusion prevention layer.Type: ApplicationFiled: September 8, 2011Publication date: November 8, 2012Applicant: MITSUI MINING &SMELTING CO. LTDInventors: Yoshinori Matsuura, Nozomu Kitajima
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Publication number: 20080006734Abstract: It is an object to provide a reel capable of expecting strength and dimensional accuracy almost equivalent to those of a metal reel, preventing product failures from being caused by the generation of metal powder, exchanging only a damaged part even in the case in which the part of a member for protecting the reel main body is damaged, being manufactured at a low cost by the miniaturization of a metal mold structure, and preventing a carrier tape and a wiring pattern from being damaged or broken as much as possible.Type: ApplicationFiled: May 31, 2006Publication date: January 10, 2008Applicants: Mitsui Mining & Smelting Co., Ltd., Kyushu Seimitsu Kiki Co., Ltd.Inventors: Yuji Tejima, Nozomu Kitajima, Masao Kawauchi, Shuichi Yamamoto, Tomonori Noda
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Patent number: D581937Type: GrantFiled: May 30, 2007Date of Patent: December 2, 2008Assignees: Mitsui Mining & Smelting Co., Ltd., Kyushu Seimitsu Kiki Co., Ltd.Inventors: Masao Kawauchi, Tomonori Noda, Shuichi Yamamoto, Nozomu Kitajima