Abstract: A process for producing an emulsifier which comprises hydrolysis of water-soluble hemicellulose with purified rhamnogalacturonase, and emulsified compositions prepared using the emulsifier.

Abstract: A gas current classifier has a material feed nozzle, a Coanda block, a classifying wedge and a classifying wedge block having the classifying wedge. The Coanda block and the classifying wedge define a classification zone, and the classifying wedge block is set up in the manner that its location is changeable so that the form of the classification zone can be changed.

Abstract: An optical module includes an optical connector element formed of first and second substrates for carrying optical fibers therebetween, and a device substrate carrying photodiodes on an upper major surface thereof in correspondence to the optical fibers, wherein the optical connector element is mounted upon the device substrate such that end surfaces of the first and second substrates face the principal surface of the device substrate and such that polygonal projections provided on the principal surface of the device substrate for positioning engage with corresponding spaces formed between the first and second substrates at the foregoing end surfaces.

Abstract: The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble tetrahydrofuran (THF) component, its chromatograph measured with soluble tetrahydrofuran (THF) component has a main peak in a region of a molecular weight of 2,000 to 30,000 and a subpeak or a shoulder in a high molecular weight region of a molecular weight of 100,000 or more, a ratio of weight average molecular weight (Mw)/number average molecular weight (Mn) thereof is 30 or more, the high molecular weight region has a crosslinking monomer unit as a component monomer unit and the binder resin contains high molecular weight polymer having a Mw of 1,200,000 or more polymerized by using both polyfunctional initiator and a mono-functional initiator. Moreover, the present invention relates to a method of manufacturing a resin composition for producing a toner.

Abstract: An optical module includes an optical connector element formed of first and second substrates for carrying optical fibers therebetween, and a device substrate carrying photodiodes on an upper major surface thereof in correspondence to the optical fibers, wherein the optical connector element is mounted upon the device substrate such that end surfaces of the first and second substrates face the principal surface of the device substrate and such that polygonal projections provided on the principal surface of the device substrate for positioning engage with corresponding spaces formed between the first and second substrates at the foregoing end surfaces.

Abstract: An image forming method comprising;a charging step of electrostatically charging a photosensitive member;an exposure step of exposing the charged photosensitive member to form an electrostatic latent image;a developing step of bringing a toner carried on a developer carrying member, into contact with the surface of the photosensitive member to develop the electrostatic latent image to form a toner image on the photosensitive member;a transfer step of transferring the toner image formed on the photosensitive member, to a transfer medium; anda cleaning-at-development step of collecting the toner remaining on the photosensitive member after the transfer step, onto the developer carrying member;a wherein;the surface of said photosensitive member has a contact angle with water of 85.degree. or greater;said toner contains residual monomers in an amount not more than 1,000 ppm; andsaid toner has a shape factor SF-1 of from 100 to 180 and a shape factor SF-2 of from 100 to 140.

Abstract: A gas current toner classifier has a material feed nozzle, a Coanda block, a classifying wedge and a classifying wedge block having the classifying wedge.The Coanda block and the classifying wedge define a classification zone, and the classifying wedge block is set up in the manner that its location is changeable so that the form of the classification zone can be changed. A method of producing toner using said classifier is also described.