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51. 发明专利

JPS53120542A HEAT SENSITIVE RECORDING PAPER 失效
公开(公告)号：JPS53120542A
公开(公告)日：1978-10-21
申请号：JP3467177
申请日：1977-03-30
申请人： HITACHI LTD
发明人： MORI YASUKI , OKA HIROYUKI , MORISHITA YASUSADA
IPC分类号： B41M5/337 , B42D15/10 , G06K19/06
摘要： PURPOSE:To render the restriction of upper limit temperature of thermal heads almost negligibly small, by adding a specified nonpolar compound as a temperature rise preventing agent to a heat sensitive recording layer.

52. 发明专利

JPS5364040A PHOTOSENSITIVE PLATE FOR XEROGRAPHY 失效
公开(公告)号：JPS5364040A
公开(公告)日：1978-06-08
申请号：JP13837676
申请日：1976-11-19
申请人： HITACHI LTD
发明人： TSUNODA ATSUSHI , KOUBI AKIO , MORI YASUKI , MORISHITA YASUSADA
IPC分类号： G03G5/00 , G03G5/04 , G03G5/06 , H01L31/08 , H01L51/42
摘要： PURPOSE:To overcome the drawback of lower sensitivity in the blue color region of phthalocyanine type pigment having ordinary crystal structure for which no specific preparation is necessary to make it practivally available by dispersing it in a specific polymer.

53. 发明专利

JPH0566581B2 失效
公开(公告)号：JPH0566581B2
公开(公告)日：1993-09-22
申请号：JP14756384
申请日：1984-07-18
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： KOKADO HIROYOSHI , SUZUKI SHIGEO , MORI YASUKI , NARAHARA TOSHIKAZU , TSUNODA ATSUSHI , AMO SATORU , OSHIKUBO TOSHIO
IPC分类号： G03G13/00 , G03G5/05

54. 发明专利

JPS6255138B2 失效
公开(公告)号：JPS6255138B2
公开(公告)日：1987-11-18
申请号：JP13152378
申请日：1978-10-27
申请人： HITACHI LTD
发明人： SUZUKI SHIGEO , TSUNODA ATSUSHI , MORI YASUKI , MORISHITA YASUSADA
IPC分类号： G03G5/06 , G03G5/04

55. 发明专利

JPS61223850A ELECTROPHOTOGRAPHIC TONER 失效
公开(公告)号：JPS61223850A
公开(公告)日：1986-10-04
申请号：JP6364985
申请日：1985-03-29
申请人： HITACHI LTD
发明人： KAWANISHI TSUNEAKI , SHIMIZU RYUICHI , SUZUKI SHIGEO , HOSAKA SHIGEO , MORI YASUKI , NARAHARA TOSHIKAZU
IPC分类号： G03G9/08 , G03G9/087
摘要： PURPOSE:To obtain a heat roll-fixable toner good in high-speed fixability by using a toner binder resin contg. a styrene-butadiene rubber and a lactone- modified epoxy resin and a polyester resin. CONSTITUTION:The electrophotographic toner contains the binder resin, a colorant, and a triboelectrification controller, and the binder resin is composed of a styrene-butadiene rubber, a lactone-modified epoxy resin obtained by ring- opening polymn. of the lactone with the whole or part of secondary OH groups of epoxy compd. having OH groups in the molecule, and a polyester resin. It is especially suitable to use a binder resin composed of 5-30wt.% styrene- butadiene rubber, 20-80wt.% lactone-modified epoxy resin, and 5-50wt.% polyester resin.

56. 发明专利

JPS6127550A Electrophotographic sensitive body and electrophotographic method 失效
标题翻译：电子感应敏感体和电泳方法
公开(公告)号：JPS6127550A
公开(公告)日：1986-02-07
申请号：JP14756384
申请日：1984-07-18
申请人： Hitachi Chem Co Ltd , Hitachi Ltd
发明人： KOKADO HIROYOSHI , SUZUKI SHIGEO , MORI YASUKI , NARAHARA TOSHIKAZU , TSUNODA ATSUSHI , AMO SATORU , OSHIKUBO TOSHIO
IPC分类号： G03G13/00 , G03G5/05
CPC分类号： G03G5/0575
摘要： PURPOSE:To improve adhesiveness and wear resistance by providing an org. photoconductive layer in which an alkyl etherified melamine.formamide resin is used as a binder for a photoconductive material. CONSTITUTION:A coating liquid for forming an electric charge generating layer is prepd. by dispersing and dissolving the charge generating layer, resin, additives, etc. to an org. solvent such as tetrahydrofuran, etc. and is coated on a conductive substrate and is dried to form the charge generating layer. Separately, a coating liquid is prepd. by dissolving a charge transfer material, alkyl etherified melamine.formaldehyde resin alone or a resin which can cure by reacting with said resin and various additives into an org. solvent and is coated on the charge generating layer and is dried to laminate the charge transfer layer thereon. An electrophotographic sensitive body is thus formed. The conductive substrate having a conductive layer which is of OMEGAcm is adequate as the conductive base.
摘要翻译：目的：通过提供组织来提高粘合性和耐磨性。其中烷基醚化的三聚氰胺甲酰胺树脂用作光电导材料的粘合剂的光电导层。构成：制备用于形成电荷产生层的涂布液。通过将电荷产生层，树脂，添加剂等分散并溶解到组织中。溶剂如四氢呋喃等，并且涂覆在导电基底上并干燥以形成电荷产生层。另外，制备涂布液。通过溶解电荷转移材料，单独的烷基醚化三聚氰胺甲醛树脂或可通过与所述树脂和各种添加剂反应而固化的组分的树脂。溶剂并涂覆在电荷产生层上并干燥以在其上层叠电荷转移层。由此形成电子照相感光体。具有导电性层的导电性基材作为导电性基体是足够的。

57. 发明专利

JPS6122345A Electrophotographic sensitive body 失效
标题翻译：电子感应敏感体
公开(公告)号：JPS6122345A
公开(公告)日：1986-01-30
申请号：JP14239884
申请日：1984-07-11
申请人： Hitachi Chem Co Ltd , Hitachi Ltd
发明人： KOKADO HIROYOSHI , SUZUKI SHIGEO , AMOU SATORU , MORI YASUKI , TSUNODA ATSUSHI , OSHIKUBO TOSHIO
IPC分类号： G03G5/05 , G03G5/14 , G03G5/147
CPC分类号： G03G5/0575
摘要： PURPOSE:To enhance abrasion resistance and adhesion strength and the like by forming a protective layer made of an alkyl-etherified melamin-formaldehyde resin (AEMF resin) in an electrophotographic sensitive body formed by laminating the protective layer on a photoconductive layer. CONSTITUTION:The intended electrophotographic sensitive body is obtained by forming the photoconductive layer directly or indirectly on a conductive substrate and laminating on this layer the protective layer made of the AEMF resin or a compsn. contg. this resin. As the AEMF resin, a butyl-etherified melamine- formaldehyde resin having a number average mol.wt. of
摘要翻译：目的：通过在由感光体层叠保护层而形成的电子照相感光体中形成由烷基醚化的三聚氰胺 - 甲醛树脂（AEMF树脂）制成的保护层，以提高耐磨性和粘合强度等。构成：通过将导电层直接或间接地形成在导电性基板上并在该层上层叠由AEMF树脂或其制成的保护层而获得所需的电子照相感光体。对比这种树脂。作为AEMF树脂，具有数均分子量的丁基醚化的三聚氰胺 - 甲醛树脂 <= 1,500，并且每个三聚氰胺环的组合甲醛数为2-4，羟甲基数为1-2，是最佳的。该树脂通过将三聚氰胺溶解在丁醇中，并滴加甲醛以进行加成反应和丁基醚化反应或进行类似操作来制备。

58. 发明专利

JPS60242489A HEAT FIXING METHOD 失效
公开(公告)号：JPS60242489A
公开(公告)日：1985-12-02
申请号：JP14253484
申请日：1984-07-09
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： MORI YASUKI , MORISHITA YASUSADA , SHIMIZU RIYUUICHI
IPC分类号： G03G15/20
摘要： PURPOSE:To prevent offset and to decrese the frequency of exchanging rolls by using a layer of silicone rubber contg. pulverous powder silica for holding adsorptively silicone oil to constitute the surface of the roll for heat fixing. CONSTITUTION:The surface layer of the roll is formed of the silicon rubber prepd. by dispersing the pulverous powder silica for holding adsorptively the silicone oil not as a mere filler for the silicone oil but as an adsorbent for the silicone oil into said rubber. As a result, the oil bled by the press contact with the opposite rolls lasts for a long period although the quantity thereof is slight and the frequency of exchanging the rolls is decreased. The pulverous powder of several 10nm is preferable and is incorporated into the oil more preferably at 10-20wt% by the weight thereof. Said silica exhibits the characteristic of an oil compd. The oil compd. is preferably incorporated much in the part near the roll center, i.e., in the part in contact with the base body of the rubber. Such two- rubber layers in which the rubber layer rich with the oil compd. is wound on the base body and thereafter the layer poor with the oil compd. is wound thereon are equally preferable.

59. 发明专利

JPS6087337A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS6087337A
公开(公告)日：1985-05-17
申请号：JP19659883
申请日：1983-10-19
申请人： HITACHI LTD , TOYO INK MFG CO
发明人： TSUNODA ATSUSHI , OKA HIROYUKI , MORI YASUKI , NARAHARA TOSHIKAZU , TAKANO SHIGEMASA , ENOKIDA TOSHIO , KUMANO ISAO , SAWADA MANABU
IPC分类号： G03G5/04 , G03G5/06 , H01L31/08
摘要： PURPOSE:To obtain sufficient sensitivity in the emission wavelength region of a semiconductor laser and to improve resolution and durability by using tau-type and/or eta-type metal-free phthalocyanine as an electrostatic charge generating material and a specified compd. as a charge transfer material. CONSTITUTION:A layer contg. a charge generating material and a layer contg. a charge transfer material are formed on a conductive substrate to obtain a composite type electrophotographic sensitive body. As the charge generating material, metal-free phthalocyanine of a type selected from tau-type, tau'-type, eta-type, and eta'-type is used, and as the charge transfer material, compds. represented by the formula, are used, in which R1 is alkyl or alkoxy, X is -CH2-, -O-, -S-, or -CHR2- and R2 is 1-4C alkyl. Such a composite type photosensitive body is obtained, e.g., by forming a layer contg. the charge generating material on a conductive substrate and on this layer a layer contg. the charge transfer material. The use of a combination of such a charge generating and charge transfer materials enhances sensitivity even in a long wavelength region, and the obtained photosensitive body is especially suitable for a semiconductor laser printer using a semiconductor laser as a light source.

60. 发明专利

JPS6087336A COMPOSITE TYPE ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS6087336A
公开(公告)日：1985-05-17
申请号：JP19659683
申请日：1983-10-19
申请人： HITACHI LTD , TOYO INK MFG CO
发明人： SUZUKI SHIGEO , TSUNODA ATSUSHI , KOKADO HIROYOSHI , OKA HIROYUKI , MORI YASUKI , TAKANO SHIGEMASA , SAWADA MANABU , KUMANO ISAO , ENOKIDA TOSHIO
IPC分类号： G03G5/04 , G03G5/06 , H01L31/08
摘要： PURPOSE:To obtain good sensitivity over a wide wavelength range including the emission wavelength region of a semiconductor laser by using tau-type and/or eta- type metal-free phthalocyanine as an electrostatic charge generating material and a specified compd. as a charge transfer material. CONSTITUTION:A layer contg. a charge generating material and a layer contg. a charge transfer material are formed on a conductive substrate to obtain a composite type electrophotographic sensitive body. As the charge generating material, metal-free phthalocyanine of a type selected from tau-type, tau'-type, eta-type, and eta'-type is used, and as the charge transfer material, compds. represented by the formula, are used, in which X1-X3 are each aryl, and n is 0 or 1. Such a composite type photosensitive body is obtained, e.g., by forming a layer contg. the charge generating material on a conductive substrate and on this layer a layer contg. the charge transfer material or it may have a reverse constitution, or both materials may be contained in one layer. Ths use of a combination of such a charge generating and charge transfer materials enhances sensitivity even in a long wavelength region, and the obtained photosensitive body is especially suitable for a semiconductor laser printer using a semiconductor laser as a light source.

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