Patents by Inventor Yuji Ikuno
Yuji Ikuno 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: 5257100Abstract: An optical image is formed on one end surface of an image guide formed Of a fiber bundle by an objective optical system provided in a tip section at the tip of an elongate insertable section, is transmitted to the other end surface and is photoelectrically converted by an imaging device together with the pattern of the fiber bundle on the other end surface to be an image signal. This image signal is separated by a region separating circuit into a fiber bundle light transmitting region and another non-representative region. The image data of the non-representative region are processed to be replaced with other image data by an image replacing circuit to produce an image having had the network pattern of the fiber bundle reduced.Type: GrantFiled: September 24, 1991Date of Patent: October 26, 1993Assignee: Olympus Optical Co., Ltd.Inventors: Shinichiro Hattori, Yuji Ikuno
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Patent number: 4983019Abstract: An endoscope light source apparatus which can feed an illuminating light adapted to a scope provided with a frame sequential type imaging device, a scope provided with a color mosaic type imaging device and a fiber scope has a light source lamp which can emit the illuminating light. A filter which can transmit the illuminating light is interposed in the light path connecting the light source lamp with the entrance end surface of a light guide capable of feeding the illuminating light to the scope and is provided within a cassette which is inserted through an inserting aperture provided on a housing containing the light source apparatus.Type: GrantFiled: June 13, 1990Date of Patent: January 8, 1991Assignee: Olympus Optical Co., Ltd.Inventors: Yuji Ikuno, Toshiaki Nishikori, Akihiko Miyazaki, Kazunari Nakamura, Fumiyuki Onoda, Hiromasa Suzuki, Takeaki Nakamura, Yoshinao Oaki, Atsushi Kidawara, Masahide Kanno, Hisao Yabe, Shinichi Katoh
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Patent number: 4901142Abstract: A video scope system including a video scope in which a solid state image sensor is disposed in a distal end of an insertion to be inserted into an object under inspection and picks up an image of the inside of the object under inspection illuminated by a light fed by a light guide extending in the insertion section, a light source unit having a light source feeding a light into the light guide, and a video processor unit processing a signal supplied from the solid state image sensor to output a picture signal to be displayed on a monitor. The light source unit and the video processor unit are disposed in separate housings, respectively, and these units are connected to each other by a cable to transmit a signal therebetween.Type: GrantFiled: March 18, 1988Date of Patent: February 13, 1990Assignee: Olympus Optical Co., Ltd.Inventors: Yuji Ikuno, Takeaki Nakamura, Yoshikazu Tojo, Shinichi Nishigaki, Hiromasa Suzuki, Hisao Yabe, Jun Yoshinaga, Takeshi Yokoi, Kazuhiko Ohzeki, Masahide Kanno
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Patent number: 4873572Abstract: This electronic endoscope apparatus comprises an elongate insertable part, two image forming optical systems provide in the tip part of the insertable part and an integrated imaging device provided in the tip part of the insertable part and having two imaging regions in which object images are formed by two image forming optical systems. The imaging device has, for example, one solid state imaging device having two imaging regions or has two solid state imaging devices made integral.Type: GrantFiled: February 24, 1988Date of Patent: October 10, 1989Assignee: Olympus Optical Co., Ltd.Inventors: Akihiko Miyazaki, Tetsuo Nonami, Yuji Ikuno
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Patent number: 4870488Abstract: A system provided with an electronic scope containing a solid state imaging device on the tip side of the insertable part and a television camera containing an solid state imaging device and fitted to the eyepiece part of an optical endoscope provided with an optical image transmitting device within the insertable part. The number of pixels of the solid state imaging device of the television camera is made larger than the solid state imaging device of the electronic scope.Type: GrantFiled: February 9, 1988Date of Patent: September 26, 1989Assignee: Olympus Optical Co., Ltd.Inventors: Yuji Ikuno, Hiroki Hibino
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Patent number: 4862258Abstract: The endoscope light source apparatus of this invention has a light source for emitting a white color light as an illuminating light and a connecting part connectable with the light guide of the endoscope. Reflecting members are movably provided in the light path connecting the light source and the connecting part, and switch the light path between a light path through which the illuminating light adapted to an endoscope provided with a frame sequential type imaging device can be made to enter a filter which can sequentially transmit it and a light path which can avoid the filter.Type: GrantFiled: April 29, 1988Date of Patent: August 29, 1989Assignee: Olympus Optical Co., Ltd.Inventors: Atsushi Kidawara, Toshiaki Nishikori, Masahide Kanno, Hisao Yabe, Shinichi Katoh, Yuji Ikuno, Takeaki Nakamura
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Patent number: 4338940Abstract: An apparatus for supplying power to an electrosurgical device comprising a power output device for providing a surgical current, a switch for supplying the power output device with a power signal to provide the surgical current, a first signal generator for supplying the switch with a switch signal to turn on and off the switch with a given timing, a second signal generator for supplying the power output device with a surgical signal having a period corresponding to the surgical current, a timer triggered by the switch signal and producing a timer signal for a given time after being triggered, and a gate for allowing the surgical current to be delivered from the power output device only while the timer signal is being produced. The surgical current is supplied from the power output device to the electrosurgical device in accordance with the logical AND of the switch signal, the timer signal and the surgical signal.Type: GrantFiled: August 13, 1980Date of Patent: July 13, 1982Assignee: Olympus Optical Co., Ltd.Inventor: Yuji Ikuno
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Patent number: 4325606Abstract: A connector for a light guide cable of an endoscope comprises a connector body having one end connected to a light guide cable and the other end flush with a light-receiving face of a light guide inserted in the connected body, an electrically insulating member surrounding the connector body, and contacts embedded in the outer surface of the insulating member. None or almost none of its members protrude from the forward end or the outer periphery of the connector, whereby the connector may be fitted into a receptacle in fluid-tight fashion and can be easily cleaned and fully dried after cleaning.Type: GrantFiled: November 28, 1979Date of Patent: April 20, 1982Assignee: Olympus Optical Co., Ltd.Inventors: Yuji Ikuno, Kunio Kinoshita, Katsuyuki Kanehira
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Patent number: 4284338Abstract: A camera for an endoscope has a transmitting circuit for transmitting a release signal and a modulated signal modulated by a photocurrent signal, and a superposing circuit for superposing the modulated signal onto a motor drive line connecting to a film wind motor. A light source unit has a demodulated circuit for demodulating the modulated signal transmitting from the transmitting circuit, through the motor drive line. An exposure measuring circuit calculates an optimum exposure by using the demodulated signal from the demodulating circuit.Type: GrantFiled: February 6, 1980Date of Patent: August 18, 1981Assignee: Olympus Optical Co., Ltd.Inventor: Yuji Ikuno
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Patent number: 4154240Abstract: A high frequency oscillator and a low frequency oscillator are provided to produce a high frequency cutting signal and a low frequency signal respectively. The high frequency cutting signal is modulated by a signal produced by differentiating the low frequency signal to form a coagulation signal. The high frequency cutting signal and the coagulation signal are compounded on a time division basis by a blend control signal generated by a blend control signal generating circuit to form a blend signal.Type: GrantFiled: January 3, 1978Date of Patent: May 15, 1979Assignee: Olympus Optical Co., Ltd.Inventors: Yuji Ikuno, Yutaka Tanaka
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Patent number: 3980085Abstract: The apparatus comprises a high frequency oscillator, an amplifier, and a pair of electrodes for treatment of a biological tissue. A high frequency voltage of constant magnitude is applied across the electrodes to permit a current flow across a biological tissue which is held between the electrodes, thereby causing Joule's heat to be produced depending upon the resistance thereof for the purpose of coagulation, excision or erasion of the biological tissue.Type: GrantFiled: June 10, 1975Date of Patent: September 14, 1976Assignee: Olympus Optical Co., Ltd.Inventor: Yuji Ikuno