Patents by Inventor Sadaaki Nakaoka
Sadaaki Nakaoka 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: 5320734Abstract: A test apparatus for measuring concentration of test solution, in which a thin sheet having a plurality of through holes and diffusion-limiting membranes to cover corresponding through hole, is movably installed, and one or two openings for deposition and a concentration measuring section are disposed in a thin sheet moving direction.Type: GrantFiled: October 29, 1992Date of Patent: June 14, 1994Assignee: Daikin Industries, Ltd.Inventors: Koichi Yamasaki, Tatsuhiko Osaka, Hitonaga Nakano, Toji Mukai, Yasuhiro Nagata, deceased, Sadaaki Nakaoka, Susumu Fujita, Yoichi Hamada
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Patent number: 5228972Abstract: A disk-shaped thin plate or a long-sized thin plate having a roll appearance housed in a casing in which openings for penetration of test substance are formed and on which diffusion-limiting membranes are adhered to cover each openings. Also a driving mechanism for moving the thin plate is provided with the casing. The casing thus houses the thin plate and is provided with the driving mechanism and is positioned in a test apparatus body having a concentration measuring electrode therein. Multiple measurments of concentration of a test substance are carried out by moving the thin plate by the driving mechanism to position the diffusion-limiting membrane having the test solution deposited thereon to the position available to contact with the concentration measuring electrode, while keeping the casing placed in the test apparatus body. As a result, a plurality of measurements of concentration of the test substance is carried out easily.Type: GrantFiled: May 30, 1989Date of Patent: July 20, 1993Assignee: Daikin Industries, Ltd.Inventors: Tatsuhiko Osaka, Koichi Yamasaki, Hiroshi Terawaki, Toji Mukai, Sadaaki Nakaoka, Harumi Tanaka, Yoichi Hamada
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Patent number: 4788576Abstract: A microfilm duplicating apparatus for duplicating images, recorded on a master film onto a photographic duplicate film, comprising a light source for illuminating any one of the images on the master film from rear, a single reflective mirror for reflecting a luminous flux, which has been emitted from the light source and passed through the master film while carrying the image to be duplicated, so as to travel towards the duplicate film, and an image forming lens assembly consisting of two facing lenses of equal focal length disposed on the path of travel of the luminous flux.Type: GrantFiled: June 16, 1987Date of Patent: November 29, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Eiichi Saito, Sadaaki Nakaoka, Kuniomi Abe, Takeshi Okano
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Patent number: 4785333Abstract: A blip marking recorder for a microfilm duplicating apparatus for duplicating images, recorded on a master film, onto a duplicate film through a photographic optical system, which comprises a blip marking imprinting mechanism disposed between the master film and the duplicate film for imprinting a blip marking for retrieval at a location between each of the neighboring frames of the duplicate film.Type: GrantFiled: June 19, 1987Date of Patent: November 15, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Okano, Sadaaki Nakaoka
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Patent number: 4760425Abstract: A developer supply apparatus for a processing head which develops an image exposure-formed on an electrophotographic film by a developer. The developer, which is stored in a bottle, is pumped up to a switching valve by the expansion and contraction of a bellows. The switching valve is selectively set in two positions, that is, a first position for returning the pumped developer to the bottle thereby stirring the developer, and a second position for delivering the developer to the processing head to effect development. The bellows is capable of supplying an amount of developer which is required for the processing head to effect one developing operation with one stroke, thus enabling development to be reliably carried out.Type: GrantFiled: December 23, 1986Date of Patent: July 26, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Okano, Sadaaki Nakaoka, Shichi Ohtsuka
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Patent number: 4733279Abstract: A microfilming camera for taking an microimage of a document on a film. The microfilming camera comprises a main mirror disposed beneath a transparent document support for the support thereon of a document to be microfilmed, which main mirror is used to deflect the optical path of a photo-taking system, a side mirror disposed on each side of the space delimited between the document support and the main mirror, and illuminating sources positioned exteriorly of the optical path and disposed in face-to-face relationship with the respective side mirrors.Type: GrantFiled: November 18, 1986Date of Patent: March 22, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Okano, Sadaaki Nakaoka
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Patent number: 4640597Abstract: A micro-reader which comprises a generally rectangular box-like, flattened casing a slide frame slidably supported by the casing for movement between retracted and extended positions, a light-permeable screen mounted on and supported by the casing for movement between folded and erected positions, and a reflective mirror member carried by the slide frame for movement between laid-down and upright positions.Type: GrantFiled: February 11, 1985Date of Patent: February 3, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Okano, Sadaaki Nakaoka, Saichiro Ohashi
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Patent number: 4629299Abstract: A microform-reader which comprises a generally rectangular box-like, flattened casing a slide frame slidably supported by the casing for movement between retracted and extended positions, a light-permeable screen mounted on and supported by the casing for movement between folded and erected positions, and a reflective mirror member carried by the slide frame for movement between laid-down and upright positions.Type: GrantFiled: August 27, 1985Date of Patent: December 16, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Okano, Sadaaki Nakaoka, Saichiro Ohashi
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Patent number: 4619519Abstract: An electrophotographic camera processor-reader in which the function of recording of picture image data on an electrophotographic film and the function of enlargement projection of picture image data recorded on the electrophotographic film can be changed over as required. One lens having both the function of focusing picture image data carried by an original onto the electrophotographic film, and the function of projecting picture image data recorded on the electrophotographic film onto an opaque screen is provided in combination with a combined screen and original-supporting plate, so as to simplify the structure of and reduce the size of the apparatus.Type: GrantFiled: July 19, 1984Date of Patent: October 28, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Michihiko Takahashi, Eiichi Saito, Takeshi Okano, Sadaaki Nakaoka