Patents by Inventor Toshiya Kurihashi
Toshiya Kurihashi 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: 6785060Abstract: A reflecting-type optical system according to the invention includes an optical element composed of a transparent body having an entrance surface, an exit surface and at least three curved reflecting surfaces of internal reflection. A light beam coming from an object and entering at the entrance surface is reflected from at least one of the reflecting surfaces to form a primary image within the optical element and is, then, made to exit from the exit surface through the remaining reflecting surfaces to form an object image on a predetermined plane. In the optical system, 70% or more of the length of a reference axis in the optical element lies in one plane.Type: GrantFiled: January 14, 2002Date of Patent: August 31, 2004Assignee: Canon Kabushiki KaishaInventors: Kenichi Kimura, Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6639729Abstract: A reflecting type of zoom optical system comprises a plurality of optical elements each of which includes a transparent body and two refracting surfaces and a plurality of reflecting surfaces formed on the transparent body and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection by the plurality of reflecting surfaces, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from surface reflecting mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element.Type: GrantFiled: October 2, 2001Date of Patent: October 28, 2003Assignee: Canon Kabushiki KaishaInventors: Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6636360Abstract: A reflecting type of zoom optical system comprises a plurality of optical elements each of which includes a transparent body and two refracting surfaces and a plurality of reflecting surfaces formed on the transparent body and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection by the plurality of reflecting surfaces, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from surface reflecting mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element.Type: GrantFiled: November 3, 2000Date of Patent: October 21, 2003Assignee: Canon Kabushiki KaishaInventors: Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6498624Abstract: There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions (1a, 1b, 1c) are formed in the board (1). The opening portion (1a) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board (1) and a shield case (49). The photographing optical system mounted on the board (1) includes a stop unit (30) for adjusting the light amount of an object image guided through the opening portion (1a), and prism-like optical members (G1, G2, G3, G4), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface.Type: GrantFiled: February 26, 1996Date of Patent: December 24, 2002Assignee: Canon Kabushiki KaishaInventors: Shigeo Ogura, Toshiya Kurihashi, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai, Hiroyuki Ogino
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Publication number: 20020149854Abstract: A reflecting type of zoom optical system comprises a plurality of optical elements each of which includes a transparent body and two refracting surfaces and a plurality of reflecting surfaces formed on the transparent body and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection by the plurality of reflecting surfaces, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from surface reflecting mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element.Type: ApplicationFiled: October 2, 2001Publication date: October 17, 2002Inventors: Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6457647Abstract: A memory card adaptor comprising an adaptor main body detachably insertable in a memory card slot of a piece of information equipment; a first connector based on standard specifications, provided on the adaptor main body and adapted to be connected to a connector provided in the memory card slot; a mounting portion provided on the adaptor main body and adapted to detachably receive a memory card which is detachably inserted into a memory card slot of another piece of equipment different from the information equipment, for effecting exchange of information signals in serial data form with the external equipment; and a second connector not based on the standard specifications, provided on the mounting portion and adapted to be connected with a connector provided on the memory card and corresponding to a connector in the memory card slot of the external equipment; wherein exchange of information signals in serial data form is enabled between the information equipment and the memory card by insertion of the adaptType: GrantFiled: January 8, 1997Date of Patent: October 1, 2002Assignee: Canon Kabushiki KaishaInventors: Toshiya Kurihashi, Masahiko Morita
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Publication number: 20020105734Abstract: An optical system of reflecting type according to the invention comprises an optical element composed of a transparent body having an entrance surface, an exit surface and at least three curved reflecting surfaces of internal reflection, wherein a light beam coming from an object and entering at the entrance surface is reflected from at least one of the reflecting surfaces to form a primary image within the optical element and is, then, made to exit from the exit surface through the remaining reflecting surfaces to form an object image on a predetermined plane, and wherein 70% or more of the length of a reference axis in the optical element lies in one plane.Type: ApplicationFiled: January 14, 2002Publication date: August 8, 2002Inventors: Kenichi Kimura, Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6392703Abstract: There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions (1a, 1b, 1c) are formed in the board (1). The opening portion (1a) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board (1) and a shield case (49). The photographing optical system mounted on the board (1) includes a stop unit (30) for adjusting the light amount of an object image guided through the opening portion (1a), and prism-like optical members (G1, G2, G3, G4), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface.Type: GrantFiled: February 26, 1996Date of Patent: May 21, 2002Assignee: Canon Kabushiki KaishaInventors: Yoshihiro Uchino, Toshiya Kurihashi, Shigeo Ogura, Nobuhiro Takeda, Kenichi Kimura, Toshikazu Yanai
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Patent number: 6366411Abstract: A reflecting-type optical system according to the invention includes an optical element composed of a transparent body having an entrance surface, an exit surface and at least three curved reflecting surfaces of internal reflection. A light beam coming from an object and entering at the entrance surface is reflected from at least one of the reflecting surfaces to form a primary image within the optical element and is, then, made to exit from the exit surface through the remaining reflecting surfaces to form an object image on a predetermined plane. In the optical system, 70% or more of the length of a reference axis in the optical element lies in one plane.Type: GrantFiled: July 7, 2000Date of Patent: April 2, 2002Assignee: Canon Kabushiki KaishaInventors: Kenichi Kimura, Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6292309Abstract: A zoom lens comprises a plurality of optical elements each of which includes a transparent body having two refracting surfaces and a plurality of reflecting surfaces and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from front surface mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element.Type: GrantFiled: December 14, 1999Date of Patent: September 18, 2001Assignee: Canon Kabushiki KaishaInventors: Makoto Sekita, Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6166866Abstract: A reflecting-type optical system according to the invention includes an optical element composed of a transparent body having an entrance surface, an exit surface and at least three curved reflecting surfaces of internal reflection. A light beam coming from an object and entering at the entrance surface is reflected from at least one of the reflecting surfaces to form a primary image within the optical element and is, then, made to exit from the exit surface through the remaining reflecting surfaces to form an object image on a predetermined plane, In the optical system, 70% or more of the length of a reference axis in the optical element lies in one plane.Type: GrantFiled: February 26, 1996Date of Patent: December 26, 2000Assignee: Canon Kabushiki KaishaInventors: Kenichi Kimura, Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Makoto Sekita, Nobuhiro Takeda, Yoshihiro Uchino, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 6021004Abstract: A zoom lens comprises a plurality of optical elements each of which includes a transparent body having two refracting surfaces and a plurality of reflecting surfaces and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from front surface mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element.Type: GrantFiled: February 26, 1996Date of Patent: February 1, 2000Assignee: Canon Kabushiki KaishaInventors: Makoto Sekita, Tsunefumi Tanaka, Toshiya Kurihashi, Shigeo Ogura, Keisuke Araki, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai, Norihiro Nanba, Hiroshi Saruwatari, Takeshi Akiyama
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Patent number: 5847887Abstract: There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions (1a, 1b, 1c) are formed in the board (1). The opening portion (1a) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board (1) and a shield case (49). The photographing optical system mounted on the board (1) includes a stop unit (30) for adjusting the light amount of an object image guided through the opening portion (1a), and prism-like optical members (G1, G2, G3, G4), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface.Type: GrantFiled: October 24, 1997Date of Patent: December 8, 1998Assignee: Ohtsuka Patent OfficeInventors: Shigeo Ogura, Toshiya Kurihashi, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai
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Patent number: 5825560Abstract: There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions (1a, 1b, 1c) are formed in the board (1). The opening portion (1a) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board (1) and a shield case (49). The photographing optical system mounted on the board (1) includes a stop unit (30) for adjusting the light amount of an object image guided through the opening portion (1a), and prism-like optical members (G1, G2, G3, G4), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface.Type: GrantFiled: February 26, 1996Date of Patent: October 20, 1998Assignee: Canon Kabushiki XaishaInventors: Shigeo Ogura, Toshiya Kurihashi, Nobuhiro Takeda, Yoshihiro Uchino, Kenichi Kimura, Toshikazu Yanai
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Patent number: 5351139Abstract: There is disclosed an apparatus including a guide member for guiding a photographed film, an illumination unit for illuminating the film, a reflection member for reflecting light from the film, a conversion unit for photoelectrically converting light reflected by the reflection member, and a housing which builds in at least the conversion unit and the illumination unit.Type: GrantFiled: November 27, 1992Date of Patent: September 27, 1994Assignee: Canon Kabushiki KaishaInventors: Kazuhiko Miyahara, Takao Kinoshita, Kenichi Kawamoto, Toshiya Kurihashi, Kaneyoshi Tokano