Abstract: Disclosed is an electrophotoreceptor comprising a conductive substrate and provided thereon, a photoreceptive layer comprising a charge generation material, an organic electron transporting charge transport material and a binder, wherein a layer transporting charge satisfies inequality .alpha..ltoreq.0.6, said .alpha. being a gradient of a straight line represented by the following formula (a):.PHI..sub.CTL =.alpha..multidot..PHI..sub.M +.beta. (a)wherein .PHI..sub.CTL represents work function of the layer transporting charge alone obtained by measuring a contact potential difference of the layer transporting charge on a conductive electrode material; .PHI..sub.M represents work function of the conductive electrode material; and .beta. is a constant.

Abstract: An air conditioner indoor unit comprising: a housing; an impeller arranged in the housing and forming a cross flow fan; a rear side plate arranged downstream the impeller and forming a rear side of a diffused air path; a front side plate forming a front side of the diffused air path and including a first air outlet surface, a second air outlet surface and a third air outlet surface; the first air outlet surface arranged near to the impeller and having a portion on a side of an air outlet of the diffused air path slanted in a direction away from a reference surface defined by the rear side plate; the second air outlet surface arranged next to the first air outlet surface on the side of the air outlet and having a portion on the side of the air outlet slanted in a direction away from the reference surface; and the third air outlet surface arranged next to the second air outlet surface on the side of the air outlet end and having a portion on the side of the air outlet slanted at 20.degree.-30.degree.

Abstract: A phosphoenolpyruvate carboxylase gene, which has mutation such as mutation to replace 625th glutamic acid from the N-terminus of phosphoenolpyruvate carboxylase with lysine, mutation to replace 438th arginine from the N-terminus with cysteine and the like, is introduced into Escherichia coli or coryneform bacteria, so as to produce a phosphoenolpyruvate carboxylase which is not substantially inhibited by aspartic acid, thereby amino acid is efficiently produced.

Abstract: A phosphoenolpyruvate carboxylase gene, which has mutation such as mutation to replace 625th glutamic acid from the N-terminus of phosphoenolpyruvate carboxylase with lysine, mutation to replace 438th arginine from the N-terminus with cysteine and the like, is introduced into Escherichia coli or coryneform bacteria, so as to produce a phosphoenolpyruvate carboxylase which is not substantially inhibited by aspartic acid, thereby amino acid is efficiently produced.

Abstract: An electrophotographic photoreceptor is disclosed, comprising a conductive support and having thereon a photoreceptor layer comprising an electron-transporting charge transport layer containing an organic electron-transporting material in a binder, the electron transporting charge transport layer further containing an aliphatic amine compound having an oxidation potential of 0.5 to 0.9 V versus a silver/silver chloride electrode, in an amount of 0.01 to 20 parts by weight based on 100 parts of the electron-transporting material.

Abstract: L-lysine is produced efficiently by cultivating, in a liquid medium, a microorganism belonging to the genus Escherichia with decreased or disappeared lysine decarboxylase activity relevant to decomposition of L-lysine, for example, a bacterium belonging to the genus Escherichia with restrained expression of a novel gene coding for lysine decarboxylase and/or a known gene cadA to allow L-lysine to be produced and accumulated in a culture liquid, and collecting it.

Abstract: A blowoff orifice is constituted by an upper wall, a lower wall and a vertical wind deflecting plate. The upper wall inclines so that a flow passage becomes narrow toward downstream and provided with a protrusion at its end portion. The lower wall has a horizontal linear portion on the downstream side and an end portion forming an acute angle at the tip of the linear portion. The vertical wind deflecting plate is provided between the upper wall and the lower wall, and capable of changing an airflow from a horizontal direction to a downward direction. The upper wall protrusion is located more downstream than the lower wall end portion.

Abstract: A blowoff orifice is constituted by an upper wall, a lower wall and a vertical wind deflecting plate. The upper wall inclines so that a flow passage becomes narrow toward downstream and provided with a protrusion at its end portion. The lower wall has a horizontal linear portion on the downstream side and an end portion forming an acute angle at the tip of the linear portion. The vertical wind deflecting plate is provided between the upper wall and the lower wall, and capable of changing an airflow from a horizontal direction to a downward direction. The upper wall protrusion is located more downstream than the lower wall end portion.

Abstract: A coryneform bacterium having high L-lysine productivity is provided by integrating a gene coding for aspartokinase originating from coryneform bacteria with desensitized feedback inhibition by L-lysine and L-threonine, into chromosomal DNA of a coryneform bacterium harboring leaky type homoserine dehydrogenase or a coryneform bacterium deficient in homoserine dehydrogenase gene.

Abstract: In this invention, charges are extracted from the charge storage portion by means of F-N tunnel current, and then avalanche hot carriers are injected into the storage portion.

Abstract: An electrophotographic photoreceptor comprises a conductive support and provided thereon, a photpreceptive layer containing a compound represented by the following Formula 1: ##STR1## wherein X represents a group capable of forming a hydrogen bond; and R.sub.1, R.sub.2 and R.sub.3 independently represent a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an alkoxy group, an aryl group, an aryloxy group, a heterocyclic group, a hydroxy group, a nitro group, a cyano group, an acyl group, a urethane group, a carboxyl group, a carboxylate ester group, an amido group or --NH.sub.2, --NHR or --NHCOR in which R represents alkyl or aryl; and R' and R" independently represent a hydrogen atom, an alkyl group or an aryl group or R' and R" combine with each other to form a ring.

Abstract: A photoelectric emission surface which is excellent in stability and reproducibility of photoelectric conversion characteristics and has a structure capable of obtaining a high photosensitivity is provided. A predetermined voltage is applied between an upper surface electrode and a lower surface electrode by a battery. Upon application of this voltage, a p-n junction formed between a contact layer and an electron emission layer is reversely biased. A depletion layer extends from the p-n junction into the photoelectric emission surface, and an electric field is formed in the electron emission layer and a light absorbing layer in a direction for accelerating photoelectrons. When incident light is absorbed in the light absorbing layer to excite photoelectrons, the photoelectrons are accelerated by the electric field toward the emission surface.

Abstract: Recombinant DNA replicable in microorganisms belonging to the genus Corynebacterium, which contains a DNA fragment coding for an aspartokinase .alpha.-subunit protein originating from a bacterium belonging to the genus Corynebacterium, in which synergistic feedback inhibition by L-lysine and L-threonine is substantially desensitized, and a DNA fragment coding for an aspartokinase .beta.-subunit protein originating from a bacterium belonging to the genus Corynebacterium, in which synergistic feedback inhibition by L-lysine and L-threonine is substantially desensitized, is introduced into a microorganism belonging to the genus Corynebacterium. Thus a transformant having enhanced production and excretion speeds of L-lysine is obtained. The transformant is cultivated in an appropriate medium, and produced L-lysine is separated.

Abstract: A photoelectric emission surface which is excellent in stability and reproducibility of photoelectric conversion characteristics and has a structure capable of obtaining a high photosensitivity is provided. A predetermined voltage is applied between an upper surface electrode and a lower surface electrode by a battery. Upon application of this voltage, a p-n junction formed between a contact layer and an electron emission layer is reversely biased. A depletion layer extends from the p-n junction into the photoelectric emission surface, and an electric field is formed in the electron emission layer and a light absorbing layer in a direction for accelerating photoelectrons. When incident light is absorbed in the light absorbing layer to excite photoelectrons, the photoelectrons are accelerated by the electric field toward the emission surface.

Abstract: In this invention, charges are extracted from the charge storage portion by means of F-N tunnel current, and then avalanche hot carriers are injected into the storage portion.

Abstract: Disclosed is an image forming method using an electrophotographic photoreceptor comprising the steps of:(1) charging the electrophotographic photoreceptor, wherein said electrophotographic photoreceptor comprising a conductive support and provided thereon, a carrier generation layer and a carrier transportation layer, said carrier generation layer comprising a carrier generation material represented by formula 1 or 2 and having X-ray diffraction pattern having peaks at 6.3.degree..+-.0.2.degree., 12.4.degree..+-.0.2.degree., 25.3.degree..+-.0.2.degree. and 27.1.degree..+-.0.2.degree. in Bragg angle (2.theta.) when using Cu-K.alpha. ray as a X-ray radiation source in which said peak of 12.4.degree..+-.0.2.degree. has a maximum intensity and has a half width of 0.65.degree. or more; no peak being present at 11.5.degree..+-.0.2.degree.,(2) imagewise exposing the charged photoreceptor for an exposure time of 1.times.10.sup.-4 to 3.times.10.sup.

Abstract: Disclosed is an electrophotographic photoreceptor comprising a conductive support and provided thereon an intermediate layer, a carrier generation layer containing a carrier generation material and a carrier transportation layer containing a carrier transportation material, wherein said carrier generation layer contains a first perylene compound represented by Formula A and a second perylene compound represented by Formula B as said carrier generation material: ##STR1## wherein Z represents a substituted or unsubstituted divalent aromatic hydrocarbon group or a substituted or unsubstituted divalent heterocyclic group; and R represents an alkyl group, an aralkyl group, a hydroxyalkyl group, an alkoxyalkyl group, an aromatic hydrocarbon group or a heterocyclic group; ##STR2##

Abstract: Disclosed is an electrophotographic photoreceptor contains a carrier generation material represented by Formula 1 or 2 having peaks at 2.theta.=6.3.degree., 12.4.degree., 25.3.degree. and 27.1.degree. in the Bragg angle (2.theta..+-.0.2.degree.) as measured by X-ray diffraction under radiation of Cu-K.alpha. rays; said peak of 12.4.degree. has a maximum intensity and has a half width of 0.65.degree. or more; no peak being present at 11.5.degree.

Abstract: There is disclosed a photocathode comprising:a photoelectric conversion layer for internally exciting photoelectrons in response to incident photons; a semiconductor layer having a photoelectron emission surface for emitting the photoelectrons generated and accelerated in the photoelectric conversion layer from the photoelectron emission surface; an upper surface electrode formed on the photoelectron emission surface of the semiconductor layer; and a lower surface electrode formed on the semiconductor layer so that the lower surface electrode is opposite to the upper surface electrode through the semiconductor layer, the upper surface electrode being divided so as to provide a plurality of pixel electrodes which are electrically insulated from each other, the plurality of pixel electrodes being respectively connected to a plurarity of bias application wires.

Abstract: In this invention, charges are extracted from the charge storage portion by means of F-N tunnel current, and then avalanche hot carriers are injected into the storage portion.