Patents by Inventor Teruo Sakai
Teruo Sakai 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: 7643086Abstract: An electronic still camera includes an image pickup element provided in an optically isolated space which is opened and closed by a shutter, and an image pickup optical system which makes object light incident upon the image pickup element. An image pickup light path defined between the shutter and the image pickup element is sealed by a sealing member.Type: GrantFiled: August 27, 2003Date of Patent: January 5, 2010Assignee: Hoya CorporationInventors: Makoto Mogamiya, Teruo Sakai
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Patent number: 7508441Abstract: An electronic still camera includes a photographing optical system, an image pick-up device, and a transmission optical component. Light rays of an object which are passed through the photographing optical system are incident on the image pick-up device through the transmission optical component. The transmission optical component is shaped so as to shift an image point of an object image formed through the photographing optical system rearwards.Type: GrantFiled: September 26, 2003Date of Patent: March 24, 2009Assignee: Hoya CorporationInventors: Makoto Mogamiya, Teruo Sakai
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Patent number: 7348119Abstract: The present invention provides a toner for developing an electrostatic latent image including: toner mother particles containing a binder resin and a colorant; and manganese compound particles having a ?-type crystalline structure, the production method thereof, and a developer containing the toner.Type: GrantFiled: June 28, 2005Date of Patent: March 25, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Tetsu Torigoe, Noriyoshi Takahashi, Teruo Sakai, legal representative, Emi Takahashi, Teigen Ri, Sueko Sakai
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Patent number: 7303846Abstract: An electrophotographic toner contains at least a binder resin and a colorant, and log10{[Cu]/[C]} satisfies the following equation (1): ?5.0?log10{[Cu]/[C]}??3.5 ??(1) in which, [C] represents a carbon content (%) and [Cu] represents a copper content (%), measured with fluorescent X-ray. An electrophotographic developer containing the toner, a method for producing the toner, and a method for forming an image by using the toner are also provided.Type: GrantFiled: March 15, 2005Date of Patent: December 4, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Teruo Sakai, legal representative, Yuka Ishihara, Atsuhiko Eguchi, Masahiro Okita, Jun Igarashi, Koichi Sugiyama, Susumu Yoshino, Sueko Sakai, deceased
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Publication number: 20060210901Abstract: The present invention provides a toner for developing an electrostatic latent image including: toner mother particles containing a binder resin and a colorant; and manganese compound particles having a ?-type crystalline structure, the production method thereof, and a developer containing the toner.Type: ApplicationFiled: June 28, 2005Publication date: September 21, 2006Applicant: FUJI XEROX CO., LTD.Inventors: Tetsu Torigoe, Noriyoshi Takahashi, Sueko Sakai, Teruo Sakai, Emi Takahashi, Teigen Ri
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Publication number: 20060115757Abstract: A toner for development of an electrostatic latent image, comprises: a binder resin; a colorant; and a release agent, wherein the binder resin has a weight average molecular weight of 20,000 to 40,000, and when a carbon content and a sulfur content of the toner measured using X-ray fluorescence are represented by [C] % and [S] %, respectively, [S]/[C] satisfies expression (1): 0.0002?[S]/[C]?0.0030 ??(1).Type: ApplicationFiled: May 26, 2005Publication date: June 1, 2006Applicant: FUJI XEROX CO., LTD.Inventors: Emi Takahashi, Noriyoshi Takahashi, Sueko Sakai, Teruo Sakai, Tetsu Torigoe, Teigen Ri
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Publication number: 20060046173Abstract: An electrophotographic toner contains at least a binder resin and a colorant, and log10{[Cu]/[C]} satisfies the following equation (1): ?5.0?log10{[Cu]/[C]}??3.5 ??(1) in which, [C] represents a carbon content (%) and [Cu] represents a copper content (%), measured with fluorescent X-ray. An electrophotographic developer containing the toner, a method for producing the toner, and a method for forming an image by using the toner are also provided.Type: ApplicationFiled: March 15, 2005Publication date: March 2, 2006Applicant: FUJI XEROX CO., LTD.Inventors: Sueko Sakai, Yuka Ishihara, Atsuhiko Eguchi, Masahiro Okita, Jun Igarashi, Koichi Sugiyama, Susumu Yoshino, Teruo Sakai
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Patent number: 6965134Abstract: An image pick-up unit includes an image pick-up device; and a plurality of optical filters which are cemented together in layers and positioned in front of the image pick-up device. At least two optical filters among the plurality of optical filters, which have different optical properties, are different in shape from each other.Type: GrantFiled: November 19, 2003Date of Patent: November 15, 2005Assignee: PENTAX CorporationInventors: Makoto Mogamiya, Teruo Sakai
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Publication number: 20040041915Abstract: An electronic still camera includes an image pickup element provided in an optically isolated space which is opened and closed by a shutter, and an image pickup optical system which makes object light incident upon the image pickup element. An image pickup light path defined between the shutter and the image pickup element is sealed by a sealing member.Type: ApplicationFiled: August 27, 2003Publication date: March 4, 2004Applicant: PENTAX CorporationInventors: Makoto Mogamiya, Teruo Sakai
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Publication number: 20040016871Abstract: An image pickup device includes a ceramic package in which the image pickup device is mounted, and an optical member which seals a space defined between an image pickup surface of the image pickup device and the optical member within the ceramic package. The optical member is provided, on the surface thereof which is opposed to the image pickup surface, with a coating layer formed by ion-plating, the coating layer being adhered to the ceramic package by an adhesive.Type: ApplicationFiled: July 16, 2003Publication date: January 29, 2004Applicant: PENTAX CorporationInventors: Makoto Mogamiya, Teruo Sakai
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Patent number: 6487517Abstract: A control unit box and one of standard point members are provided close to a connection of first and second bars. A standard plane is defined by the standard point members. A loop antenna is provided in a mount unit situated on the top surface of the control unit box. The box is positioned such that a ratio of a second distance to a first distance is less than tan 8°. The first distance is from the point member to the mount unit, along the standard plane, and the second distance is from the standard plane to the top surface of the mount unit, along a direction perpendicular to the standard plane. The antenna is connected to an oscillator of 310 MHz. With respect to the antenna, the total length is approximately 0.48 m, a height from the top surface of the unit box is approximately 9.5 mm, and the inner diameter is approximately 25 mm.Type: GrantFiled: May 23, 2001Date of Patent: November 26, 2002Assignee: Pentax CorporationInventors: Teruo Sakai, Atsumi Kaneko
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Publication number: 20010055483Abstract: A control unit box and one of standard point members are provided close to a connection of first and second bars. A standard plane is defined by the standard point members. A loop antenna is provided in a mount unit situated on the top surface of the control unit box. The box is positioned such that a ratio of a second distance to a first distance is less than tan 8°. The first distance is from the point member to the mount unit, along the standard plane, and the second distance is from the standard plane to the top surface of the mount unit, along a direction perpendicular to the standard plane. The antenna is connected to an oscillator of 310 MHz. With respect to the antenna, the total length is approximately 0.48 m, a height from the top surface of the unit box is approximately 9.5 mm, and the inner diameter is approximately 25 mm.Type: ApplicationFiled: May 23, 2001Publication date: December 27, 2001Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Teruo Sakai, Atsumi Kaneko
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Patent number: 5937528Abstract: In a tilt sensor including a sealed container which is comprised of a container body and a top cover plate which is adapted to close the container body and is provided on the inner surface thereof with a recess whose depth gradually increases from the peripheral edge toward the center thereof, and a holder which holds the sealed container, the top cover plate and the holder are provided with a positioning device which determines a relative angular position between the sealed container and the holder. A mask and a coat holder, which are used to form electrodes on the top cover plate are also disclosed.Type: GrantFiled: July 24, 1997Date of Patent: August 17, 1999Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Yoshihisa Shijo, Takanobu Shiokawa, Teruo Sakai, Yuko Ochiai, Hiroaki Fuse, Hiroshi Sone
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Patent number: 5838431Abstract: The laser marking device comprises a laser source, an optical system for projecting a laser beam emitted from the laser source to form a laser spot on an object, a light distributing element that is disposed in an optical path of the optical system and includes at least one light distributing portion that distributes a part of the laser beam to form at least one static reference line on the object so that the laser spot is formed on the static reference line, a rotating mechanism that rotates at least a part of the optical system to form a dynamic reference on the object, and a switch for selecting between a rotation mode in which the rotating mechanism is activated and a stationary mode in which said rotating mechanism is not activated.Type: GrantFiled: January 14, 1997Date of Patent: November 17, 1998Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Masato Hara, Satoshi Takami, Teruo Sakai, Noriaki Takahashi, Eiichi Ito
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Patent number: 4378492Abstract: A laser output measuring device for a laser knife having a flexible manipulator in which the output power at the operating end of the manipulator is accurately displayed at all times independent of changes in the transmissivity of the manipulator. A measuring hole member is provided in a housing in which is positioned a laser oscillator, a shutter device and a power detecting device. When the end of the manipulator is inserted in the measuring hole member, the shutter is positioned such that the output laser beam is directed onto the power detecting unit while when the end of the manipulator is free, the position of the shutter is determined by a foot switch such that the output laser beam from the laser oscillator can either be directed into the manipulator or to the power detecting unit.Type: GrantFiled: February 12, 1981Date of Patent: March 29, 1983Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Hironobu Nagashima, Teruo Sakai, Yuzo Noguchi, Kiyoshi Itoh
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Patent number: 4364535Abstract: A counterbalance mechanism for a laser knife device which includes a manipulator in which the overall height of the balance mechanism is quite short and all rotational moments of the manipulator are cancelled for all operative positions thereof. A base support arm is rotatably mounted around a short first hollow arm with a second hollow arm extending through upright portions of the base support arm joined at its two ends through articulations to the upper end of the first hollow arm and a third hollow arm. A parallelogram link mechanism is formed including the upright members of the base support arm, first and second substantially parallel support arms and a third substantially vertical support arm upon which a counterbalance weight is mounted. One end of the first support arm is pivotably mounted between the upright members of the base support arm while the corresponding end of the second support arm is pivotably mounted around the second hollow arm between the upright members.Type: GrantFiled: July 14, 1980Date of Patent: December 21, 1982Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Kiyoshi Itoh, Tetuo Kamoshita, Teruo Sakai, Harumi Kawasaki