Olympus Optical Company, Ltd.

Mitsubishi Chemical Corporation

Synaptics Corporation

Hitachi-kokusai Electric Inc.

Olympus Corporation

Ken Sato

Shinichi Kato

Yutaka Takahashi

Shinichiro Hattori

Takashi Tsukaya

Takashi Nose

Hirobumi Furihata

Masao Orio

Chizuko Furo

Shusaku Mandai

Ryosuke Taniguchi

Naohito Doi

Kenji Shinohara

Yasuhiro Hirano

Nobuaki Kawahara

Kenji Furui

Nobuhiro Nagato

Iwaisako Hiroshi

A diverting agent of the present invention contains a polyvinyl alcohol-based resin, wherein when the diverting agent is added to a 0.48 mass % aqueous solution of guar gum to prepare a mixed solution having a concentration of 12 mass %, a dispersion liquid obtained by dispersing the mixed solution at 30&#xb0; C. for 60 minutes is pressurized and dehydrated at a pressure of 1 MPa using a pressure dehydration device including a drainage part having a slit having a width of 2 mm, and a regression line represented by an equation (A): y=ax+b (in the equation (A), y is a cumulative dehydration amount (g), x is a square root of a time (minutes) elapsed from start of pressurization, a and b are a slope and an intercept of the regression line, respectively, and 0&#x3c;x&#x2264;2) is calculated by a least squares method from a scatter diagram plotted on a graph in which the square root x of the time is plotted on a horizontal axis and the cumulative dehydration amount y is plotted on a vertical axis, a slope a of the equation (A) satisfies a condition (B): a&#x2264;80.

Diverting agent and method of filling fracture in well using same

A display driver comprises drive circuitry and emission control circuitry. The display driver is configured to drive a display panel. The display panel may be a self-luminous display panel. The emission control circuitry is configured to generate a control signal to control the display panel during a first frame period to successively move a plurality of non-light-emitting areas successively inserted at an end of a display area of the display panel in a predetermined direction, the plurality of non-light-emitting areas having gradually changing widths in the predetermined direction.

Device and method for controlling a self-luminous display panel

A unique word that can be contained in transmittal data is to be accurately distinguished. A correlation detecting sectioncalculates correlations A through N between received data containing one of a plurality of unique words A through N and the unique words A through N respectively characteristic of the information transmission rates A through N. For the unique words A through N, the thresholds A through N are respectively set, and a formula distinguishing section, when a correlation i (i is one of A through N) is above a threshold i, a unique word i is contained in the received data, and supplies formula type data indicating that the received data have been generated at an information transmission rate i matching the unique word i. A threshold altering section, upon distinguishment of a unique word, performs alteration to reduce a value of the threshold i and enlarge values of other thresholds.

Code distinguishing apparatus

An endoscopic photographing apparatus has a TV camera with a CCD image sensor which is mounted on an eyepiece section of an endoscope, a light flash source for supplying a light flash as photographing light to the endoscope, and an observation light source for supplying observation light. The light flash source is turned on in synchronism with a release signal and a transfer gate pulse for the video signal, at the time of still image photographing. The photographic field of view of the TV camera is darkened for at least one-field scanning period, before the light flash source is turned on.

Endoscopic photographing apparatus

An endoscope system includes a CCD camera of the line transfer type located at and within the distal end of an endoscope. The camera produces and supplies a video output to a television monitor, thus enabling medical treatment with laser radiation while the affected area is under observation. Illumination of the affected area and laser radiation used for the medical treatment, are blocked at selected intervals to prevent them from impinging upon the CCD camera at least during a period of operation when the camera is in a charge transfer mode.

Endoscope system

A light flash control apparatus is used for an endoscope in which a solid-state image sensor is employed. A image signal derived from the solid-state image sensor during the illumination by a halogen lamp is also utilized as a photo-metric signal. An adequate quantity of flashlight for the image sensor is calculated in advance based upon the photo-metric signal. The calculated exposure time i.e., the desirable quantity of flashlight is stored in an integration circuit. After the given exposure time passes since the flash tube is ignited, it is forcibly turned-off by a turn-off thyristor.

Flashlight control apparatus for endoscope

Growing community of inventors

Tokyo, Japan

Ken Sato