Fuji Photo Film Company, Limited

Nissan Motor Company Limited

Tetsuro Kojima

Hiroyuki Mifune

Hirotomo Sasaki

Morio Yagihara

Koki Nakamura

Noriyuki Inoue

Naohiko Sugimoto

Nobuo Watanabe

Shigeru Ohno

Takatoshi Ishikawa

Yoshihiro Fujita

Shinji Ueda

Tadashi Ikeda

Kazunobu Katoh

Shigeo Hirano

Masaru Yoshikawa

Shoji Ishiguro

Naoyasu Deguchi

Tatsuo Heki

Shingo Ishimaru

Hideo Miyazaki

Hisashi Okada

Hideo Ikeda

Eiichi Okutsu

Mikio Ihama

Tomokazu Yasuda

Tomoyuki Koide

Nobuaki Inoue

Seiji Yamashita

Naoto Matsuda

Yoichi Maruyama

Senzo Sasaoka

Takashi Toyoda

Satoru Sawada

Satoshi Nagaoka

Yasuhiro Mitamura

Kimiyasu Morimura

Nobuyuki Haraguchi

Tohru Kitahara

Masakazu Morigaki

Yoshio Inagaki

Hiroshi Hayashi

Nobuo Furutachi

Hisashi Mikoshiba

Hidetoshi Kobayashi

Yasuhiro Kato

Junichi Yamanouchi

Hisashi Okamura

Hideaki Naruse

Kozo Aoki

Ichizo Toya

Yasuo Mukunoki

Masahiro Asami

Katsumi Hayashi

Shunji Takada

Akio Mitsui

Katsuhisa Ohzeki

Mitsuru Yamamoto

Tetsunori Matsushita

Yoshiharu Fuseya

Hideo Usui

Shinichi Ichikawa

Shinji Kato

Kengo Fujiwara

Tsutomu Hamaoka

Mitsuhiro Shouji

Akira Kase

Harumi Watanabe

Kazuhiko Takeuchi

Kota Fukui

Mitsura Yamamoto

Tetunoti Matushita

Provided is an electric motor control method includes: calculating a second torque command value by correcting the first torque command value by a vibration compensation torque for suppressing vibration in an electric motor rotation speed; limiting the vibration compensation torque based on a limit request suggesting amount suggesting a situation in which suppression of vibration in the electric motor rotation speed is to be limited; determining a limit level representing a degree of limit on the vibration compensation torque; and calculating a voltage command value by feeding back a torque suggesting amount suggesting an electric motor torque to the second torque command value. In the torque control step, a feedback gain of the torque suggesting amount is determined with reference to the limit level.

Electric motor control method and electric motor control device

An electric motor control method for controlling an electric motor by voltage phase control performed based on a voltage norm command value representing a magnitude of a voltage to be supplied to the electric motor and a voltage phase command value representing a phase of the voltage. The method including: acquiring a required time required for calculating a final command value of a voltage applied to the electric motor by the voltage phase control according to a command value calculation model for calculation by using a rotation speed parameter related to a rotation speed of the electric motor; detecting the rotation speed parameter; changing the detected rotation speed parameter based on the required time; and calculating the final command value by using the changed rotation speed parameter according to the command value calculation model.

Electric motor control method and electric motor system

A method of processing a silver halide color photographic material comprises the steps of color-developing an image-wise exposed silver halide color photographic material and subjecting the developed material to desilvering in a processing bath having a fixing function and containing a thiosulfate compound and the following compound or analogue thereof in a molar ratio of 1/0.05 to 1/0.30. In this process, the fixing speed is extremely high even when the replenishing rate is low and the processed photosensitive material has an excellent resistance to fading by light.

Method of processing silver halide color photographic materials

Silver halide color photographic lightsensitive material

There is disclosed a light-sensitive silver halide photographic emulsion, which comprises light-sensitive silver halide grains mainly composed of (100) planes and (111) planes, at least one compound that is adsorbed selectively on the (100) planes of the silver halide grains, and at least one spectrally sensitizing dye. There is also disclosed a light-sensitive material using the emulsion. The emulsion is high in sensitivity and excellent in graininess.

Silver halide emulsion and silver halide light-sensitive material using

The present invention provides a heat development light-sensitive material which shows good discrimination of an image. A silver halide color photographic light-sensitive material is provided, wherein said light-sensitive material comprises at least one compound represented by the following general formula (I) or (II) and at least one compound represented by the following general formula (III) as a developing agent: ##STR1##

Silver halide color photographic light-sensitive material and method of

A method for processing a silver halide color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, the method comprising the steps of: exposing the light-sensitive material; color developing the light-sensitive material; and desilvering the light-sensitive material, the desilvering step comprising processing the light-sensitive material with a desilvering processing solution containing at least one compound represented by formula (I) or a salt thereof: ##STR1## wherein Z represents --NR.sub.5 (R.sub.6) or --OR.sub.7, R represents an alkylene group, n represents 0 or 1, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each independently represents a hydrogen atom, an aliphatic group or an aromatic group, and R.sub.7 represents an aliphatic group or an aromatic group, provided that any two of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be combined with each other to form a ring, that the total carbon number of R.sub.5 and R.sub.6 is from 4 to 20 and that R.sub.5 and R.sub.6 may form a ring.

Processing method of silver halide color photographic light-sensitive

Disclosed is a novel silver halide color photographic light-sensitive material comprising a support and photographic constituent layers formed thereon, said photographic constituent layers including at least one photographic light-sensitive layer comprising light-sensitive silver halide, said silver halide color photographic light-sensitive material being capable of forming an image thereon after exposure and simple heat development thereof, wherein the light-sensitive material contains a specific compound acting as an anti-fogging agent and wherein at least one silver halide emulsion contained in the light-sensitive material is characterized in that silver halide grains of the emulsion have a silver chloride content of 50 mol % or more, the tabular grains whose principal faces are each made up of a (111) plane account for 50% or more of the total projected area of the silver halide grains of the emulsion, the tabular grains have an average thickness of 0.3 .mu.m or less, and that the grains have an average aspect ratio of 2 to 80. Further, a method for forming an image by using the above silver halide color photographic light-sensitive material is disclosed.

Silver halide color photographic light-sensitive material and method for

A method for producing a photographic silver halide emulsion containing silver halide grains having a silver chloride content of 50 mol % or more and at least 30% of the surface area of the grains comprising [111] faces is disclosed, wherein the silver halide grains are formed in the presence of at least one kind of compounds represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group, an alkenyl group, or an aralkyl group; R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represents a hydrogen atom or a group capable of substituting for the hydrogen atom, R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, R.sub.4 and R.sub.5, and R.sub.5 and R.sub.6 each may be ring-condensed, provided that at least one of R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 represents an aryl group; and X.sup.- represents a counter anion.

Production method of photographic silver halide emulsion

A method for processing a silver halide color photographic photosensitive material comprises the steps of desilverizing a photosensitive silver halide material having at least one red-sensitive layer, green-sensitive layer and blue-sensitive layer respectively on one side of a transparent support and a magnetic recording layer containing magnetic grains on the other side after the color development and then washing it with water and/or stabilizing it, wherein a bath having fixing function used in the desilverization step contains the following compound or analogue thereof. ##STR1## This method does not impair the S/N ratio of the magnetically recorded information and excellent desilverization effect can be obtained.

Method for processing silver halide color photographic photosensitive

A silver halide photographic emulsion is disclosed, which is chemically sensitized with a compound having an adsorptive group onto silver halide and a labile sulfur moiety, and further a silver halide photographic material using the same emulsion is disclosed.

Silver halide photographic emulsion

There is disclosed a photographic composition having fixing capacity and a method for processing a silver halide photographic material using the same. The photographic composition having fixing capacity comprises at least one compound represented by the following formula (I):

Photographic composition having fixing capacity and a method for

A method of reduction sensitization to provide a low-fog and high-speed silver halide emulsion having satisfactory preservability and a silver halide photographic material containing a silver halide emulsion having been reduction sensitized by the method are disclosed, the reduction sensitization being carried out using a compound having a group which is capable of being adsorbed onto a silver halide and a reducing group or a precursor of that compound during silver halide grain formation or after completion of grain formation.

Reduction sensitization method of silver halide photographic emulsion

A method for processing silver halide photographic materials comprising the step of: processing imagewise exposed silver halide photographic material using a developer containing at least one compound represented by general formula (X): ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group containing from 2 to 8 carbon atoms, an alkenyl group containing from 3 to 8 carbon atoms, or an aralkyl group containing from 7 to 12 carbon atoms; or R.sub.1 and R.sub.2 are combined to form a ring; R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represents a hydrogen atom, or an alkyl group containing from 1 to 4 carbon atoms: and n represents an integer from 3 to 20. A developer for processing silver halide photographic materials comprising at least one compound represented by general formula (X), described above. A silver halide photographic material comprising: at least one compound represented by general formula (X'): ##STR2## wherein R'.sub.1 and R'.sub.2 each represents a hydrogen atom, an alkyl group containing from 1 to 30 carbon atoms, an alkenyl group containing from 3 to 30 carbon atoms, or an aralkyl group containing from 7 to 30 carbon atoms; or R'.sub.1 and R'.sub.2 are combined to form a ring; R.sub.3, R4, R.sub.5, and R.sub.6 are the same as described above; and n' represents an integer from 2 to 50. A method for processing silver halide photographic materials comprising the step of: processing imagewise exposed silver halide photographic material comprising at least one compound represented by general formula (X'), described above.

Method for processing silver halide photographic materials, and

A method for producing a silver halide emulsion, said method comprising: adding silver nitrate to a halogen compound to form an emulsion grain; and doping a non-labile selenium compound in an amount, in terms of selenium added, of from 1.0.times.10.sup.-8 to 1.0.times.10.sup.-6 mol per a unit surface area of 1 m.sup.2 of said emulsion grain, at the time when from 10 to 49% of the total silver amount used for the formation of said emulsion grain is added.

Method for producing silver halide emulsion doped with a non-labile

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Kanagawa, Japan

Tetsuro Kojima