Patents by Inventor Masakazu Kuwahara
Masakazu Kuwahara 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: 10475939Abstract: Provided is a photoelectric conversion element comprising ITiO as a transparent electrode that is formed using an inline-type sputtering method, and utilizing the high transmittance up to the near-infrared ray region and excellent conductivity of ITiO. Using the inline-type sputtering method, a first transparent conductive oxide film 8 comprising indium oxide or tin-containing indium oxide that includes indium oxide as a main component and tin at an atomic ratio Sn/(In+Sn) of 19 atomic % or less is formed on a photoelectric conversion layer 7 side, and a second transparent conductive oxide film 9 comprising a titanium-containing indium oxide that includes indium oxide as a main component, and titanium at an atomic ratio Ti/(In+Ti) of 0.5 atomic % to 3.5 atomic % is laminated on an opposite side of the first transparent conductive film 8 from the photoelectric conversion layer 7.Type: GrantFiled: May 17, 2016Date of Patent: November 12, 2019Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshiyuki Abe, Yasunori Yamanobe, Riichiro Wake, Masakazu Kuwahara
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Publication number: 20180175224Abstract: Provided is a photoelectric conversion element comprising ITiO as a transparent electrode that is formed using an inline-type sputtering method, and utilizing the high transmittance up to the near-infrared ray region and excellent conductivity of ITiO. Using the inline-type sputtering method, a first transparent conductive oxide film 8 comprising indium oxide or tin-containing indium oxide that includes indium oxide as a main component and tin at an atomic ratio Sn/(In+Sn) of 19 atomic % or less is formed on a photoelectric conversion layer 7 side, and a second transparent conductive oxide film 9 comprising a titanium-containing indium oxide that includes indium oxide as a main component, and titanium at an atomic ratio Ti/(In+Ti) of 0.5 atomic % to 3.5 atomic % is laminated on an opposite side of the first transparent conductive film 8 from the photoelectric conversion layer 7.Type: ApplicationFiled: May 17, 2016Publication date: June 21, 2018Inventors: Yoshiyuki Abe, Yasunori Yamanobe, Riichiro Wake, Masakazu Kuwahara
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Patent number: 9099219Abstract: An oxide evaporation material according to the present invention includes a sintered body containing indium oxide as a main component thereof and cerium with a Ce/In atomic ratio of 0.001 to 0.110. The L* value in the CIE 1976 color space is 62 to 95. The oxide evaporation material with the L* value of 62 to 95 has an optimal oxygen amount. Accordingly, even when a small amount of an oxygen gas is introduced into a film-formation vacuum chamber, a transparent conducting film having a low resistance and a high transmittance in the visible to near-infrared region is formed by vacuum deposition methods. Since the amount of the oxygen gas introduced is small, the difference in composition between the film and the evaporation material is made small. This reduces the variations in composition and characteristics among films formed in large quantities.Type: GrantFiled: August 15, 2013Date of Patent: August 4, 2015Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshiyuki Abe, Riichiro Wake, Masakazu Kuwahara, Kentaro Sogabe, Azusa Oshiro, Hisaki Yada
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Patent number: 9067470Abstract: An object of the present invention is to ensure that, during adjustment of a spring load by an adjuster, total fully-stretched lengths of an outer tube and an inner tube remain unchanged and the adjuster is prevented from protruding from an upper surface of a cap. In a hydraulic shock absorber 10, a spring load adjusting device 30 is configured such that an adjuster 31 is provided at an upper end portion of a vehicle body side tube 11, a push rod 33 that is moved up and down by the adjuster 31 is penetrated into a hollow portion of a hollow rod 23, a suspension spring 35 is pressurized by the push rod 33 that protrudes from the hollow portion of the hollow rod 23 to the inside of a wheel side tube 12, and the spring load of the suspension spring 35 can be adjusted by the up-and-down motion of the push rod 33 caused by the adjuster 31.Type: GrantFiled: February 25, 2013Date of Patent: June 30, 2015Assignee: SHOWA CORPORATIONInventors: Masao Shimasaki, Kimitoshi Sato, Yuji Ohuchi, Masakazu Kuwahara, Tatsuya Takahashi, Takatoshi Ohmi, Tadashi Hachisuka, Yosuke Murakami
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Patent number: 8941002Abstract: Provided are an oxide tablet for vapor deposition (oxide evaporation material), and a vapor-deposited thin film and a solar cell formed using the same. The tablet comprises a sintered body which contains indium oxide as a main component and cerium and which is subjected to no surface grinding after sintering, in which CompS/CompA=0.9 to 1.1, where the content of cerium in a surface layer to a depth of 5 ?m from a surface of the sintered body is represented by a Ce/In atomic ratio (CompS), and an average value of the content of cerium in the entire sintered body is represented by a Ce/In atomic ratio (CompA).Type: GrantFiled: January 7, 2011Date of Patent: January 27, 2015Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Yoshiyuki Abe, Riichiro Wake, Masakazu Kuwahara, Kentaro Sogabe, Azusa Oshiro, Hisaki Yada
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Publication number: 20130327395Abstract: An oxide evaporation material according to the present invention includes a sintered body containing indium oxide as a main component thereof and cerium with a Ce/In atomic ratio of 0.001 to 0.110. The L* value in the CIE 1976 color space is 62 to 95. The oxide evaporation material with the L* value of 62 to 95 has an optimal oxygen amount. Accordingly, even when a small amount of an oxygen gas is introduced into a film-formation vacuum chamber, a transparent conducting film having a low resistance and a high transmittance in the visible to near-infrared region is formed by vacuum deposition methods. Since the amount of the oxygen gas introduced is small, the difference in composition between the film and the evaporation material is made small. This reduces the variations in composition and characteristics among films formed in large quantities.Type: ApplicationFiled: August 15, 2013Publication date: December 12, 2013Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshiyuki ABE, Riichiro WAKE, Masakazu KUWAHARA, Kentaro SOGABE, Azusa OSHIRO, Hisaki YADA
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Patent number: 8574464Abstract: An oxide evaporation material according to the present invention includes a sintered body containing indium oxide as a main component thereof and cerium with a Ce/In atomic ratio of 0.001 to 0.110. The L* value in the CIE 1976 color space is 62 to 95. The oxide evaporation material with the L* value of 62 to 95 has an optimal oxygen amount. Accordingly, even when a small amount of an oxygen gas is introduced into a film-formation vacuum chamber, a transparent conducting film having a low resistance and a high transmittance in the visible to near-infrared region is formed by vacuum deposition methods. Since the amount of the oxygen gas introduced is small, the difference in composition between the film and the evaporation material is made small. This reduces the variations in composition and characteristics among films formed in large quantities.Type: GrantFiled: November 1, 2010Date of Patent: November 5, 2013Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Yoshiyuki Abe, Riichiro Wake, Masakazu Kuwahara, Kentaro Sogabe, Azusa Oshiro, Hisaki Yada
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Publication number: 20130285300Abstract: An object of the present invention is to ensure that, during adjustment of a spring load by an adjuster, total fully-stretched lengths of an outer tube and an inner tube remain unchanged and the adjuster is prevented from protruding from an upper surface of a cap. In a hydraulic shock absorber 10, a spring load adjusting device 30 is configured such that an adjuster 31 is provided at an upper end portion of a vehicle body side tube 11, a push rod 33 that is moved up and down by the adjuster 31 is penetrated into a hollow portion of a hollow rod 23, a suspension spring 35 is pressurized by the push rod 33 that protrudes from the hollow portion of the hollow rod 23 to the inside of a wheel side tube 12, and the spring load of the suspension spring 35 can be adjusted by the up-and-down motion of the push rod 33 caused by the adjuster 31.Type: ApplicationFiled: February 25, 2013Publication date: October 31, 2013Applicant: SHOWA CORPORATIONInventors: Masao SHIMASAKI, Kimitoshi SATO, Yuji OHUCHI, Masakazu KUWAHARA, Tatsuya TAKAHASHI, Takatoshi OHMI, Tadashi HACHISUKA, Yosuke MURAKAMI
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Patent number: 8343387Abstract: An oxide evaporation material in the present invention comprises a sintered body containing indium oxide as a main component thereof and cerium with the Ce/In atomic ratio of more than 0.110 and equal to or less than 0.538, and has an L* value of 62 to 95 in the CIE 1976 color space. The oxide evaporation material with the L* value of 62 to 95 has an optimal oxygen amount. Accordingly, even when a small amount of oxygen gas is introduced into a film-formation vacuum chamber, a high-refractive-index transparent film having a refractive index of 2.15 to 2.51 at a wavelength of 550 nm, a low resistance, and a high transmittance in the visible to near-infrared region is formed by vacuum deposition methods. Since the introduced oxygen gas amount is small, the difference in composition between the film and the evaporation material is made small.Type: GrantFiled: November 4, 2010Date of Patent: January 1, 2013Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Yoshiyuki Abe, Riichiro Wake, Masakazu Kuwahara, Yasuyuki Maeno
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Publication number: 20120279564Abstract: Provided are an oxide tablet for vapor deposition (oxide evaporation material), and a vapor-deposited thin film and a solar cell formed using the same. The tablet comprises a sintered body which contains indium oxide as a main component and cerium and which is subjected to no surface grinding after sintering, in which CompS/CompA=0.9 to 1.1, where the content of cerium in a surface layer to a depth of 5 ?m from a surface of the sintered body is represented by a Ce/In atomic ratio (CompS), and an average value of the content of cerium in the entire sintered body is represented by a Ce/In atomic ratio (CompA).Type: ApplicationFiled: January 7, 2011Publication date: November 8, 2012Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshiyuki Abe, Riichiro Wake, Masakazu Kuwahara, Kentaro Sogabe, Azusa Oshiro, Hisaki Yada
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Publication number: 20110147676Abstract: An oxide evaporation material in the present invention comprises a sintered body containing indium oxide as a main component thereof and cerium with the Ce/In atomic ratio of more than 0.110 and equal to or less than 0.538, and has an L* value of 62 to 95 in the CIE 1976 color space. The oxide evaporation material with the L* value of 62 to 95 has an optimal oxygen amount. Accordingly, even when a small amount of oxygen gas is introduced into a film-formation vacuum chamber, a high-refractive-index transparent film having a refractive index of 2.15 to 2.51 at a wavelength of 550 nm, a low resistance, and a high transmittance in the visible to near-infrared region is formed by vacuum deposition methods. Since the introduced oxygen gas amount is small, the difference in composition between the film and the evaporation material is made small.Type: ApplicationFiled: November 4, 2010Publication date: June 23, 2011Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshiyuki ABE, Riichiro Wake, Masakazu Kuwahara, Yasuyuki Maeno
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Publication number: 20110126899Abstract: An oxide evaporation material according to the present invention includes a sintered body containing indium oxide as a main component thereof and cerium with a Ce/In atomic ratio of 0.001 to 0.110. The L* value in the CIE 1976 color space is 62 to 95. The oxide evaporation material with the L* value of 62 to 95 has an optimal oxygen amount. Accordingly, even when a small amount of an oxygen gas is introduced into a film-formation vacuum chamber, a transparent conducting film having a low resistance and a high transmittance in the visible to near-infrared region is formed by vacuum deposition methods. Since the amount of the oxygen gas introduced is small, the difference in composition between the film and the evaporation material is made small. This reduces the variations in composition and characteristics among films formed in large quantities.Type: ApplicationFiled: November 1, 2010Publication date: June 2, 2011Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshiyuki ABE, Riichiro Wake, Masakazu Kuwahara, Kentaro Sogabe, Azusa Oshiro, Hisaki Yada
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Patent number: 6155545Abstract: The shock absorber includes an oil pressure damper (1), a piston rod (2) and a cushion spring (3), wherein the cushion spring (3) contacts to the piston rod side with an end thereof and another end (6) thereof contacts to a spring receiving face (8) of a spring seat (7). Since the spring seat (7) is integrated with an adjuster (10) by engaging claws (9) with the adjuster (10) and is also integrated with a movable cover (20), the spring seat (7), the adjuster (10) and the movable cover (20) rotate and move to an axial direction as one body.Type: GrantFiled: December 10, 1998Date of Patent: December 5, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hirofumi Noro, Osamu Sato, Shigeo Iijima, Terunari Saiki, Mitsuru Minami, Masakazu Kuwahara