Ishihara Sangyo Kaisha, Ltd.

Computer Services, Inc.

Kabushiki Kaisha Csk

Csk Corporation

Fumio Kimura

Takahiro Haga

Nobuyuki Sakashita

Tsunezo Yoshida

Kazuyuki Maeda

Masahiko Ikeguchi

Ryuzo Nishiyama

Chimoto Honda

Kanichi Fujikawa

Shigeo Murai

Hiroshi Shimoharada

Tetsuji Nishikawa

Kouji Hayashi

Koji Hayashi

Toshio Seki

Yuji Nakamura

Isao Yokomichi

Ryohei Takahashi

Rikuo Nasu

Shigeyuki Nishimura

Shooichi Honzawa

Shunzo Takahashi

Yukio Hamasaki

Yasuo Ogawa

Takeo Kaji

Koichi Sugimura

Shigeru Izawa

Kouji Minamida

Akira Kimura

Takeshi Hiratsuka

A substituted pyridinesulfonamide compound having the formula (I): ##STR1## wherein R.sub.1 is an alkyl group, a haloalkyl group, an alkoxyalkyl group or an alkenyl group, R.sub.2 is a hydrogen atom, an alkyl group, a haloalkyl group, an alkoxyalkyl group or an alkenyl group, R.sub.3 is a hydrogen atom, a halogen atom, an alkyl group, a haloalkyl group, an alkoxy group, an alkylthio group, an alkoxyalkyl group, an alkylamino group or a dialkylamino group, and each of X and Y which are independent from each other, is a halogen atom, an alkyl group, an alkoxy group or a haloalkoxy group, or salt thereof, a preparation thereof, a herbicidal composition containing it and intermediate thereof.

Substituted pyridinesulfonamide compounds, and herbicidal compositions

Optical tracking system for an optical recording arrangement with

Systems for inspecting defects in an optical recording medium

A thiophenesulfonamide compound having the formula: ##STR1## wherein X is a halogenoalkoxyalkyl group, and Y is ##STR2## wherein A is .dbd.N-- or .dbd.CH--, and each of Z.sub.1 and Z.sub.2 is a methyl group or a methoxy group, and its salt.

Thiophenesulfonamide compounds, herbicidal compositions containing them,

A herbicidal suspension concentrate characterized by comprising from 0.5 to 20 parts by weight of at least one compound selected from among sulfonamide compounds represented by the general formula (I). ##STR1## (wherein X is a hydrogen atom, a chloride atom, a bromine atom, a methyl group, or a difluoromethyl group) and their salts as an active ingredient, from 55 to 94.5 parts by weight of a vegetable oil, and from 5 to 25 parts by weight of a surfactant.

Herbicidal suspension concentrate

Mixtures of herbicidal pyridine sulfonamide compounds of formula: ##STR1## wherein X is a hydrogen atom, a halogen atom, or a methyl group which may be substituted by 1 to 3 halogen atoms, and R is a hydrogen atom or a methyl group, and their salts, with at least one herbicidal compound selected from the group consisting of 2,4-D, Dicamba, Atrazine, Bentazone, Alcachlor, Metolachlor, Propachlor, Pendimethalin, Tridiphane, Cyanazine, Bromoxynil, Acetochlor, etc.

Herbicidal composition

Method and a device for reading out optically recorded data from an optical recording medium having data recording regions defined by reference lines in stripe and plural data tracks arranged in parallel to each other and perpendicular to said reference lines. According to the present inventions, a drastic change in the position of a reference line at a given order within the sensing field is monitored from among plural reference lines covered by the field. If there is any drastic change, the order of the reference line for reading is modified so that the data track to be read can be accurately followed even if the field of the reading sensor is deviated in the direction of the data tracks. It also enables correct data reading by checking whether the position of the reference lines included in the field of the reading sensor is within the preset tolerance.

Method and device for reading out optically recorded data and

A sulfonamide compound and a salt thereof is represented by the following general formula: ##STR1## wherein each of X.sub.1, X.sub.2, and X.sub.3 independently represents a hydrogen atom or a halogen atom, each of Y.sub.1, Y.sub.2, and Y.sub.3 independently represents a halogen atom, and R represents a methyl group or a methoxy group, and is effective as an active ingredient of a herbicidal composition.

Isothiazoles as intermediates for herbicidal sulfonamides

Thiophenesulfonamide compounds, and herbicidal compositions containing

This invention relates to a binary encoding method for reading the data from an optical record comprising steps of photo-electrically reading the optically recorded data which are encoded into binary codes with an FM encoding method and of comparing thus obtained video signals with a threshold to encode the same into binary codes and the device therefor. This invention is featured by the structure that the mark rate of binary encoded signals are detected to obtain the deviation thereof from a preset mark rate and the reading sensitivity of a reading means is adjusted based on said deviation in a manner to make the mark rate of the binary encoded signals identical to the preset mark rate. This invention is further characterized by the structure that video signals are binary encoded by plural groups of binary encoding means on the basis of different thresholds and the binary encoded signals of the group having the optimal mark rate are selected.

Binary encoding method for data read from optical record and device

A method and apparatus for detecting a focussing position wherein a difference between photoelectric outputs from two photodetectors is amplified by a differential amplifier to detect a deviation of a focal point of a reader/writer head in the reading/writing operation for an optical recording medium. Prior to the amplification of the difference between the photoelectric outputs from the photodetectors, the output voltage from one of the photodetectors is changed to be input to the differential amplifier and the changing ratio is set so that the output from the differential amplifier will be zero when focalized. For this purpose, a voltage changing device for changing the photoelectric output from the photodetector is provided between an output of the photodetector and an input of the differential amplifier.

Method and apparatus for detecting focussing position deviation of

Sulfonamide compounds and salts thereof, herbicidal compositions

A method and apparatus for correcting an angular deviation which is applicable to an optical recording medium comprising a data recording region or regions defined by a reference line or lines having and data tracks perpendicular to the reference line or lines provided in the or each of the data recording regions for correcting an angular deviation on a data recording layer of said optical recording medium when the data is read by said photodetective sensor. The angular deviation is corrected by reading, by a photodetective sensor, a position of a reference line of the optical recording medium within a sight of the photodetective sensor at least at two points in the length of the reference line to detect a deviation of the reference line within the sight of said photodetective sensor from a difference between the positions of the reference line read at said points; detecting an angular deviation from said deviation and a distance between said points where the position of the reference line are detected; and correcting said angular deviation on the basis of the detected angular deviation value.

Method and apparatus for correcting angular deviation of optical

N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2- sulfonamide or a salt thereof is disclosed. The compound of the invention is useful as a herbicide which has an extremely high herbicidal effect against a wide variety of weeds including strongly noxious weeds but which shows a high safety against tomato and turfs. A process for the production of N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2 -sulfonamide is also disclosed.

N-[(4,6-dimetho

Novel substituted thiophenesulfonamide compounds useful as herbicides which are represented by the following formula, and salts thereof: ##STR1## wherein either one of X and Y is an ethenyl or propenyl group having all hydrogen atoms replaced by chlorine atoms and/or fluorine atoms, and the other is the group ##STR2## (wherein R.sub.1 and R.sub.2 are each a methyl or methoxy group, and A is .dbd.N-- or .dbd.CH--).

N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3[halo-substituted

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Tokyo, Japan

Fumio Kimura