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11. 发明专利

JPS54151039A RETOUCHING SOLUTION FOR ELECTROPHOTOGRAPHIC TONER 失效
公开(公告)号：JPS54151039A
公开(公告)日：1979-11-27
申请号：JP5934978
申请日：1978-05-18
申请人： RICOH KK
发明人： FURUKAWA MASATO
IPC分类号： G03G21/00
摘要： PURPOSE:To enhance performance for erasing toner images, to reduce retouch traces left in the area retouched, and further to reduce whitening phenomenon whitening in the retouched area after retouching, by combining 2 kinds of specified liquid. CONSTITUTION:A white pigment fine powder, such as silica is added to a liquid consisting mainly of a multivalent alcohol poorly dissolving a resin contained in an electrophotographic toner, such as ethylene glycol. Such liquid is coated and acts on the toner image like masking. Diffusion into paper by the poor solvent is small. Next, a good solvent for the resin contained in the above toner is coated. The coated poor solvent hinders the good solvent from diffusing into the paper, resulting in no penetration through the paper, permitting the resin contained in the toner not to be dissolved and the toner fine particles not to be isolated, accordingly, not to penetrate the paper. Thus, retouching traces are not left.

12. 发明专利

JPS58104300A SECONDARY STENCIL PAPER 失效
公开(公告)号：JPS58104300A
公开(公告)日：1983-06-21
申请号：JP19842981
申请日：1981-12-11
申请人： RICOH KK
发明人： FURUKAWA MASATO
IPC分类号： B42D15/00 , B42D15/02 , D21H17/49 , D21H17/53 , D21H19/24 , D21H21/26 , G03G7/00

13. 发明专利

JPS5418740A DRY TYPE TRANSFER PAPER FOR ELECTROSTATIC PHOTOGRAPHY 失效
公开(公告)号：JPS5418740A
公开(公告)日：1979-02-13
申请号：JP8318577
申请日：1977-07-12
申请人： RICOH KK
发明人： KIZU YASUO , FURUKAWA MASATO
IPC分类号： G03G7/00
摘要： PURPOSE:To enhance the reliability of separation of image carrier and transfer paper by specifying the Clark stiffness and Bekk smoothness of transfer paper in a transfer process of electrostatic photography using a separation method by corona discharging.

15. 发明专利

JPS5811573A ADHESIVE FOR BINDING NOTEPAPER 失效
公开(公告)号：JPS5811573A
公开(公告)日：1983-01-22
申请号：JP10897481
申请日：1981-07-13
申请人： RICOH KK
发明人： FURUKAWA MASATO
IPC分类号： B42C9/00 , C09J129/04
摘要： PURPOSE:The titled adhesive comprising PVA as a main component, ueful for binding notepaper for copies to be piled and fed on the automatic feed part of facsimile, etc., having high bond strength in bookbinding, being cured fully after drying, easily released, not adhering again. CONSTITUTION:The titled adhesive is used for binding notepaper for copies to be fed normally, even if the copies are piled on the automatic feed part of a facsimile or various kinds of duplicating machines. It comprises PVA as a main component. When it is used together with starch, casein glue, >=50wt% PVA is blended with the starch, etc., and when it is used together with polyvinyl acetate paste, >=70wt% PVA is blended with the paste. In applying the adhesive, preferably the solid content is 10-50wt% and the viscosity is 1,000-100,000cps (30 deg.C).

16. 发明专利

JPS55103396A PRODUCTION OF IMPREGNATION TYPE SECONDARY ORIGINAL DRAW PAPER 失效
公开(公告)号：JPS55103396A
公开(公告)日：1980-08-07
申请号：JP886079
申请日：1979-01-29
申请人： RICOH KK
发明人： FURUKAWA MASATO
IPC分类号： G03C5/18 , D21H19/20 , D21H21/26

18. 发明专利

JPS5632158A ELECTRONIC PHOTOGRAPHING 失效
公开(公告)号：JPS5632158A
公开(公告)日：1981-04-01
申请号：JP10772679
申请日：1979-08-24
申请人： RICOH KK
发明人： FURUKAWA MASATO
IPC分类号： B65H37/04 , G03G13/00 , G03G15/00
摘要： PURPOSE:To achieve substantially thin copies by applying calendering to the recording papers after implementing transcription and heat-fixing. CONSTITUTION:Copying machine 15 is provided with a calendering devcice 11. Either crown-roll type or cross-pressing calender is available as calender. When said cross-pressing calender is being used, cross angle is set to be 0.3-3 deg., with the linear pressure is >=30kg/cm . For the recording papers 13, medium thick papers each having high rigidity and 80-90mu thickness are used, so that no jamming takes place in the passage 14. For example, when such paper having 85mu thickness is calendered at cross angle 1.2 deg. with the linear pressure at 40kg/cm , the thickness of said paper turns out to be 60mu. Thus, such thin recording papers can be produced at low cost without requiring any particular mechanism to avoid the jamming, and thus very thin copies are yielded.

19. 发明专利

JPS5598761A PAPER FEED METHOD OF INTERMEDIATE PAPER 失效
公开(公告)号：JPS5598761A
公开(公告)日：1980-07-28
申请号：JP554479
申请日：1979-01-23
申请人： RICOH KK
发明人： FURUKAWA MASATO , MIYAUCHI SADAO
IPC分类号： G03G15/00
摘要： PURPOSE:To reduce the occurrence of curling, etc. and feed paper well with a simple constitution by feeding the intermediate paper comprising coating and drying water-base emulsion of resins on the surface having undergone required treatment or the opposite surface thereof with said surface being faced upward. CONSTITUTION:Impregnating agent layer of toluene solution or the like of urethane resin is formed by the specified amount through coating and drying by heating on the surface of an original. Thence, when the specified amount of 5% waterbase emulsion or the like of silicone resin is coated on said surface or the back thereof and is hot dried, then the intermediate paper of the specified amount of moisture is made. When this paper is fed with the surface having undergone the water-base emulsion treatment being faced upward, then the amount of occurrence of deformations such as curling and waving owing to the change in environmental conditions such as temperature reduces considerably as compared to the case where no emulsion treatment is done. Hence, the good feeding of the intermediate paper may be accomplished by the simple constitution of not requiring temperature control, etc.

20. 发明专利

JPS5422831A TRANSFER PAPER FOR ELECTROSTATIC PHOTOGRAPHY 失效
公开(公告)号：JPS5422831A
公开(公告)日：1979-02-21
申请号：JP8735277
申请日：1977-07-22
申请人： RICOH KK
发明人： KIZU YASUO , FURUKAWA MASATO
IPC分类号： G03G7/00
摘要： PURPOSE:To exhibit such a separating performance as is sufficient in both longitudinal longitudinal and transverse direction by specifying the curling property of one side.

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