Patents by Inventor Yoshiki Shinta
Yoshiki Shinta 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: 7369314Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: December 26, 2006Date of Patent: May 6, 2008Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7324283Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: December 27, 2006Date of Patent: January 29, 2008Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7312925Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: December 28, 2006Date of Patent: December 25, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070263287Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: December 28, 2006Publication date: November 15, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7289268Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: December 27, 2006Date of Patent: October 30, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7277228Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: December 28, 2006Date of Patent: October 2, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7274512Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: December 27, 2006Date of Patent: September 25, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7271959Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: January 2, 2007Date of Patent: September 18, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7265905Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: January 2, 2007Date of Patent: September 4, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070109646Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: December 28, 2006Publication date: May 17, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070109647Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: January 2, 2007Publication date: May 17, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070109645Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: December 27, 2006Publication date: May 17, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070109648Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: January 2, 2007Publication date: May 17, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070103784Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: December 27, 2006Publication date: May 10, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070103785Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: December 27, 2006Publication date: May 10, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Publication number: 20070095958Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: December 26, 2006Publication date: May 3, 2007Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7193780Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: GrantFiled: August 13, 2004Date of Patent: March 20, 2007Assignee: Olympus CorporationInventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta
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Patent number: 7130125Abstract: This optical filter provides a substrate and thin films. The thin films comprise an outermost layer portion and a refractive index varying portion. The refractive index varying portion is formed by laminating alternately towards the substrate a low refractive index layer having a refractive index that is higher than that of air and a high refractive index layer having a refractive index that is higher than the low refractive index layer. The outermost layer portion comprises an outermost low refractive index layer having a refractive index that is higher than that of air, a first outermost high refractive index layer having a refractive index that is higher than that of the outermost low refractive index layer, and a second outermost high refractive index layer having a refractive index that is higher than that of the first outermost high refractive index layer.Type: GrantFiled: October 8, 2004Date of Patent: October 31, 2006Assignee: Olympus CorporationInventors: Yoshiki Shinta, Yorio Wada
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Publication number: 20050111103Abstract: This optical filter provides a substrate and thin films. The thin films comprise an outermost layer portion and a refractive index varying portion. The refractive index varying portion is formed by laminating alternately towards the substrate a low refractive index layer having a refractive index that is higher than that of air and a high refractive index layer having a refractive index that is higher than the low refractive index layer. The outermost layer portion comprises an outermost low refractive index layer having a refractive index that is higher than that of air, a first outermost high refractive index layer having a refractive index that is higher than that of the outermost low refractive index layer, and a second outermost high refractive index layer having a refractive index that is higher than that of the first outermost high refractive index layer.Type: ApplicationFiled: October 8, 2004Publication date: May 26, 2005Inventors: Yoshiki Shinta, Yorio Wada
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Publication number: 20050041293Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.Type: ApplicationFiled: August 13, 2004Publication date: February 24, 2005Inventors: Yorio Wada, Ken Kawamata, Nobuyoshi Toyohara, Yoshiki Shinta