Patents by Inventor Kenji Koyama
Kenji Koyama 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: 5579886Abstract: In a case where a succeeding coin has arrived at a coin discriminator (110) before a preceding coin passed through the coin discriminator (110) arrives at a disposition position of a true/false coin distributor (120), the true/false coin distributor (120) is shifted to a false coin side to distribute both of the preceding and succeeding coins to the false coin side. When the preceding coin passed through the coin discriminator (110) is true one and if the succeeding coin has already arrived at the coin discriminator (110) immediately after passage of the preceding coin through the true/false coin distributor (120), the true/false coin distributor (120) is shifted to the false coin side to distribute only the succeeding coin to the false coin side.Type: GrantFiled: October 11, 1994Date of Patent: December 3, 1996Assignee: Kabushiki Kaisha Nippon ConluxInventors: Takeshi Ishida, Kenji Koyama, Iwao Kanasashi, Jun Yamada, Genzo Yoshizawa
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Patent number: 5468181Abstract: The type of denomination of a coin inserted through a coin slot is discriminated by a coin discriminating section while the coin is being conveyed substantially horizontally by a mechanism for horizontally conveying coins, and the discriminated coin is distributed by coin distributing levers for selectively executing a first distributing operation for distributing coins to a relevant coin accumulating section and a second distributing operation for introducing the coins to an ensuing coin distributing section.Type: GrantFiled: June 20, 1994Date of Patent: November 21, 1995Assignee: Kabushiki Kaisha Nippon ConluxInventors: Takeshi Ishida, Kenji Koyama, Hiroshi Kasama, Kenji Nishiumi, Kenji Nakajima
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Patent number: 5346047Abstract: The type of denomination of a coin inserted through a coin slot is discriminated by a coin discriminating section while the coin is being conveyed substantially horizontally by a mechanism for horizontally conveying coins, and the discriminated coin is distributed by coin distributing levers for selectively executing a first distributing operation for distributing coins to a relevant coin accumulating section and a second distributing operation for introducing the coins to an ensuing coin distributing section.Type: GrantFiled: May 26, 1993Date of Patent: September 13, 1994Assignee: Kabushiki Kaisha Nippon ConluxInventors: Takeshi Ishida, Kenji Koyama, Hiroshi Kasama, Kenji Nishiumi, Kenji Nakajima
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Patent number: 5315502Abstract: Disclosed herein is a plant operation supporting method whereby a body of simulation data simulating the data admitted from a plant in error state is used along with a previously prepared body of knowledge to simulate various modes of plant operation and to have appropriate operation guides displayed for verification of the knowledge.Type: GrantFiled: June 6, 1990Date of Patent: May 24, 1994Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kenji Koyama, Shoichi Uchihara
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Patent number: 5307110Abstract: A pulse-controlled camera has a single motor capable of conducting a drive of a photo-taking lens and a drive of opening and closing of shutter blades at a high speed with a high reliability and a high precision in a compact structure, in which mechanical errors in machining and assembling may be electrically adjusted and which can facilitate automatic assembling. The pulse-controlled camera comprises a basic reciprocating member which is rotated in a forward direction or in a backward direction with respect to a home position by a pulse motor. The forward rotation of the basic, reciprocating member from the home position also rotates a lens feeding member through a ratchet base plate in the forward direction, so that a cam action of the lens feeding member feeds a lens holding frame up o a position corresponding to a measured distance value.Type: GrantFiled: February 5, 1993Date of Patent: April 26, 1994Assignee: Ricoh Company, Ltd.Inventors: Kousaku Sawabe, Daisuke Hata, Kenji Koyama
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Patent number: 5148212Abstract: A flashing apparatus of an automatic light-adjusting type for illuminating a photographed object by discharging a charge charged to a main capacitor from a light emitting tube has an energy amount detector for detecting an energy amount applied to the light emitting tube from the main capacitor; an energy amount setting device for setting an amount of discharged energy of the main capacitor corresponding to a quantity of light required to illuminate the photographed object; a comparator for comparing the energy amount detected by the energy amount detector with the energy amount set by the energy amount setting device; and a light emission stopping device for stopping light emission of the light emitting tube by a signal outputted from the comparator when the comparator detects that the discharged energy amount of the main capacitor is in conformity with the set amount of the energy amount setting device after the light emission is started.Type: GrantFiled: January 22, 1991Date of Patent: September 15, 1992Assignee: Ricoh Company, Ltd.Inventors: Yoshio Serikawa, Susumu Iguchi, Akira Ueno, Hiroshi Takeda, Shigeru Mitsu, Kenji Koyama, Yukihisa Narazaki, Yoshihiko Shimura
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Patent number: 5041311Abstract: A CVD method comprises the steps of making a plasma self-cleaning within a chamber using a gas which includes fluorine, coating an inside of the chamber by a first layer of a material which includes silicon and nitrogen, and forming a second layer on a predetermined surface within the chamber by a chemical vapor deposition. The second layer is made of a material which includes a quantity of nitrogen smaller than a quantity of nitrogen included in the first layer.Type: GrantFiled: March 9, 1990Date of Patent: August 20, 1991Assignee: Fujitsu LimitedInventors: Atsuhiro Tsukune, Kenji Koyama
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Patent number: 4866468Abstract: A control device for driving a zoom lens of a camera, comprising; a moving mirror cylinder movable on an optical axis of the camera between a first position corresponding to the shortest focal length of the zoom lens and a second position corresponding to the longest focal length of the zoom lens, a motor for moving the moving mirror cylinder in a predetermined direction, a detector for detecting a position of the moving mirror cylinder on the optical axis, a presetter for presetting a predetermined position between the first position and the second position, the predetermined position at which the moving mirror cylinder to stop, a controller for controlling the motor such that the moving mirror cylinder at a high speed, a starter for starting an actuation of the controller, a stopper for stopping an actuation of the controller in a case where the moving mirror cylinder arrives at the first position, the second position or the predetermined position.Type: GrantFiled: September 9, 1988Date of Patent: September 12, 1989Assignee: Ricoh Company, Ltd.Inventors: Keiji Himuro, Takashi Hongoh, Kenji Koyama
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Patent number: 4781945Abstract: A coating of phosphosilicate glass is deposited on a substrate by a chemical vapor deposition method, using a reaction gas consisting of monosilane, phosphine, and oxygen, in admixture with ammonia gas. According to this deposition process, the undesirable formation and adhesion of particulate by-products such as SiO.sub.2, P.sub.2 O.sub.5, and H.sub.2 SiO.sub.3 to the substrate surface can be effectively prevented, and the step coverage can be improved.Type: GrantFiled: June 23, 1987Date of Patent: November 1, 1988Assignee: Fujitsu LimitedInventors: Masahide Nishimura, Kanetake Takasaki, Kenji Koyama, Atsuhiro Tsukune
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Patent number: 4720720Abstract: A motor-driven film winder for use with a camera includes an exposure inhibit signal generator for generating an exposure inhibit signal when the number of frames to be exposed which is set by an exposure setting unit coincides with the number of exposed frames counted by a counter. The motor-driven film winder also has an unexposed frame indicator for indicating the difference between the number of frames set by the exposure setting unit and the count of the counter as the number of remaining unexposed frames when a shutter release operation of the camera is interrupted before the count of the counter reaches the preset number of frames to be exposed, and an intermittent exposure canceling signal generator for issuing an intermittent exposure cancelling signal to an intermittent exposure signal generator when the preset number of frames to be exposed coincides with the counter of the counter.Type: GrantFiled: September 18, 1985Date of Patent: January 19, 1988Assignees: Ricoh Company, Ltd., Ricoh Optical Industries Co., Ltd.Inventors: Kunihiko Araki, Tomoya Kitajima, Yoshio Serikawa, Mikio Kobayashi, Hiroshi Terui, Kenji Koyama
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Patent number: 4690754Abstract: A filter device for a minute volume of liquid, usable under a centrifugal force or under pressure, comprising a cylindrical member and a hollow thread filter having an open lower end and housed in said cylindrical member to form an annular space for containing a sample liquid around the filter, with the lower part of the hollow thread filter liquid-tightly bonded to the inside wall of the lower part of the cylindrical member and with the upper end of the hollow thread filter sealed.Type: GrantFiled: March 10, 1986Date of Patent: September 1, 1987Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Kenji Koyama, Shotaro Ohno
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Patent number: 4653885Abstract: A motor-driven film winder for use with a camera having a film winding mechanism has a motor, a first system for transmitting rotative power from the motor to the film winding mechanism, a second system for transmitting rotative power from the motor to a mounting screw for threaded engagement in a tripod screw hole of the camera, and a switching control assembly for selectively operating the first or second system. The second system includes first and second selector gears angularly movable about the axis of a main gear and rotatable about their own axes in opposite directions. One of the first and second selector gears is selectively coupled, at a time, to the mounting screw by the switching control assembly.Type: GrantFiled: September 18, 1985Date of Patent: March 31, 1987Inventors: Kunihiko Araki, Tomoya Kitajima, Yoshio Serikawa, Hiroshi Terui, Kenji Koyama, Mikio Kobayashi
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Patent number: 4581622Abstract: A silicon nitride film containing from 20 to 70% oxygen, for use as a surface passivation film, has enhanced ultraviolet ray transmissivity while exhibiting the desirable moisture proofness quality of a silicon nitride film.Type: GrantFiled: February 13, 1984Date of Patent: April 8, 1986Assignee: Fujitsu LimitedInventors: Kanetake Takasaki, Mikio Takagi, Kenji Koyama
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Patent number: 4539068Abstract: A plasma chemical vapor deposition method for forming a film on a substrate which is placed on one of a pair of electrodes oppositely arranged within the reaction chamber of a reactor. A plurality of power generators of different frequencies are applied to the electrodes to excite reactive gases introduced into the reaction chamber, whereby the reactive gases are transformed into a plasma and a desired film is formed on the substrate. Film with a small number of pinholes was formed at a relatively high deposition rate by combinations of power generator frequencies of, for example, 13.56 MHz and 1 MHz, 13.56 MHz and 50 KHz, and 5 MHz and 400 KHz.Type: GrantFiled: August 27, 1982Date of Patent: September 3, 1985Assignee: Fujitsu LimitedInventors: Mikio Takagi, Kanetake Takasaki, Kenji Koyama
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Patent number: 4532022Abstract: A silicon nitride film containing from 20 to 70% oxygen, for use as a surface passivation film, has enhanced ultraviolet ray transmissivity while exhibiting the desirable moisture proofness quality of a silicon nitride film.Type: GrantFiled: May 31, 1983Date of Patent: July 30, 1985Assignee: Fujitsu LimitedInventors: Kanetake Takasaki, Mikio Takagi, Kenji Koyama
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Patent number: 4522725Abstract: Plasma albumin is separated by a crude albumin fraction from blood plasma by a rough fractional separation and then separating plasma albumin through an ultrafiltration membrane. The ultrafiltration membrane is a membrane made of a polysulfone resin having the formula ##STR1## (n=50 to 250).Type: GrantFiled: November 6, 1980Date of Patent: June 11, 1985Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Kenji Koyama, Syotaro Ohno, Mitsutoshi Fukuda
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Patent number: 4474587Abstract: A waste gas exhausted from a chlorination furnace during the manufacture of titanium tetrachloride or zirconium tetrachloride which contains larger quantities of CO.sub.2 and harmful substances such as chlorides and the like is subjected to treatment which comprises the sequential steps of scrubbing the waste gas in a water scrubbing column, removing moisture from the waste gas to allow the waste gas to have a dew point of no more that 5.degree. C., and adsorbing the waste gas in an activated carbon packed column. The process is capable of reducing the content of chlorides in the waste gas to a level of no more than 5 ppm in HCl equivalent.Type: GrantFiled: December 29, 1982Date of Patent: October 2, 1984Assignee: Toho Titanium Co., Ltd.Inventors: Yoshimasa Matsumoto, Tadachika Mizuno, Hidehiro Sato, Kenji Koyama
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Patent number: 4347138Abstract: Serum albumin and a serum .gamma.-globulin are separated by filtration from each other in a solution of a mixture thereof by using an ultrafiltration membrane. The ultrafiltration membrane has a fractionation molecular weight of about 100,000. The total protein concentration and salt concentration in the mixture solution to be forced through the membrane are adjusted to not more than 4 g/dl and not more than 0.6 mole/l, respectively. Also, the pH of the solution is adjusted to a value of from about 3.8 to about 4.7.Type: GrantFiled: December 3, 1980Date of Patent: August 31, 1982Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Shotaro Ohno, Kenji Koyama, Mitsutoshi Fukuda
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Patent number: 4333870Abstract: .gamma.-Globulin aggregate is separated by a membrane from an aqueous solution of .gamma.-globulin through an ultrafiltration membrane.Type: GrantFiled: September 17, 1980Date of Patent: June 8, 1982Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Kenji Koyama, Syotaro Ohno, Mitsutoshi Fukuda
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Patent number: 4096099Abstract: A porous synthetic resin film which comprises fine cylindrical holes of from 70 to 2,000 A in diameter which are formed by removing the fine cylindrical component of an AB-type or an ABA-type block copolymer.Type: GrantFiled: May 14, 1976Date of Patent: June 20, 1978Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Kenji Koyama, Syotaro Ohno