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1. 发明专利

JPS6255659B2 失效
公开(公告)号：JPS6255659B2
公开(公告)日：1987-11-20
申请号：JP2687980
申请日：1980-03-03
申请人： HITACHI LTD
发明人： TSUNODA ATSUSHI , SUZUKI SHIGEO , OKA HIROYUKI , MORI YASUKI , MORISHITA YASUSADA
IPC分类号： C07D263/32 , G03G5/06 , G03G5/08

2. 发明专利

JPS61219051A ELECTROPHOTOGRAPHIC TONER 失效
公开(公告)号：JPS61219051A
公开(公告)日：1986-09-29
申请号：JP5847885
申请日：1985-03-25
申请人： HITACHI LTD
发明人： SHIMIZU RYUICHI , KAWANISHI TSUNEAKI , SUZUKI SHIGEO , HOSAKA SHIGEO , MORI YASUKI , NARAHARA TOSHIKAZU
IPC分类号： G03G9/08 , G03G9/087
摘要： PURPOSE:To obtain an electrophotographic toner superior in transfer efficiency and fluidity by incorporating in a binder a resin obtained by ring opening polymn. of one of lactones with the hydroxyl group, especially, the secondary hydroxyl group of an epoxy compd. CONSTITUTION:The electrophotographic toner contains a colorant and an electro static change controller, and the binder resin contg. a lactone-modified epoxy resin obtained by the ring-opening polymn. of a lactone with the whole or part of secondary hydroxy groups of the epoxy compd. having hydroxyl groups in the molecule, in an amt. of 3-90pts.wt., preferably, 3-80pts.wt. of the lactone par 100pts.wt. of the total modified resin, thus permitting the obtained toner to have good PVC resistance as well as good fixability and yet good fludity, and to require no silica, and to be remarkably superior in the cleanability of a photosensitive body and the transfer efficiency of the toner as compared with the conventional toners.

3. 发明专利

JPS61211094A THERMAL TRANSFER PAPER 失效
公开(公告)号：JPS61211094A
公开(公告)日：1986-09-19
申请号：JP5033785
申请日：1985-03-15
申请人： HITACHI LTD
发明人： OKA HIROYUKI , AKASAKA SHINICHI , OHARA SHUICHI , HATTORI SHINTARO , MORI YASUKI , NARAHARA TOSHIKAZU , MATSUMOTO KEIJI
IPC分类号： B41M5/395 , B41M5/26
摘要： PURPOSE:To provide a thermal transfer paper having favorable adhesion of an ink layer to a high molecular weight film and free of abnormal transfer, by using a butyral resin having a reactive functional group and a cross-linking agent as a binder for an ink layer. CONSTITUTION:The binder consists of a butyral resin and a cross-linking agent. As the cross-linking agent, there are known phenolic resins, epoxy resins, melamine resins, polyisocyantes and dialdehydes, of which di- or triisocyanates are particularly effective. The polyisocyanate is preferably used in an amount of not more than 50wt% per 100wt% of the binder. If the amount is more than 50wt%, the hardness of the ink layer itself is higher and adhesion of the layer to the film is poor, though a favorable film-forming property is obtained. Since the pot life at the time of coating is determined by the amount of the polyisocyanate added, the pot life can be freely controlled by regulating the amount of the polyisocyanate, an optimum amount being not more than 10wt%. A dye, the binder and a solvent are preferably used in amounts of 1-20wt%, 2-40wt% and 40-97wt%, respectively.

4. 发明专利

JPS60136747A MANUFACTURE OF ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS60136747A
公开(公告)日：1985-07-20
申请号：JP24971683
申请日：1983-12-26
申请人： HITACHI LTD
发明人： HOSOYA AKIRA , TSUNODA ATSUSHI , MORI YASUKI
IPC分类号： G03G15/09 , G03G5/00 , G03G5/05 , G03G5/06 , G03G13/09
摘要： PURPOSE:To fabricate an org. photosensitive body capable of forming a high- quality image small in fog, and suitable for reversal development by electrostatically charging a photoconductor after coating by corona discharge. CONSTITUTION:A cylindrical aluminum base smoothed on the surface is coated with a coating material necessary for forming a charge generating layer by the dipping method or the like, and dried to form the charge generating layer. Then, this layer is coated with a coating material necessary for forming a charge transfer layer and dried to form the laminated charge transfer layer. The obtained photosensitive drum is erased with an erasion lamp, and charged with a corona charger, and as a result, the org. photosensitive body thus obtained can form a high-quality toner image small in fog, and it is suitable for reversal development.

5. 发明专利

JPS6029941B2 失效
公开(公告)号：JPS6029941B2
公开(公告)日：1985-07-13
申请号：JP8016779
申请日：1979-06-27
申请人： HITACHI LTD
发明人： SUZUKI SHIGEO , TSUNODA ATSUSHI , OKA HIROYUKI , MORI YASUKI , MORISHITA YASUSADA
IPC分类号： G03G5/06 , G03G5/04 , H01L31/08 , H01L51/42

6. 发明专利

JPS6087335A COMPOSITE TYPE ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS6087335A
公开(公告)日：1985-05-17
申请号：JP19659583
申请日：1983-10-19
申请人： HITACHI LTD , TOYO INK MFG CO
发明人： SUZUKI SHIGEO , TSUNODA ATSUSHI , KOKADO HIROYOSHI , MORI YASUKI , NARAHARA TOSHIKAZU , 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 generatng 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, R2 are each alkyl, aralkyl, or aryl, and X is an aromatic heterocyclic group. 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. 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.

7. 发明专利

JPS6087331A COMPOSITE TYPE ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS6087331A
公开(公告)日：1985-05-17
申请号：JP19659283
申请日：1983-10-19
申请人： HITACHI LTD
发明人： KOKADO HIROYOSHI , SUZUKI SHIGEO , TSUNODA ATSUSHI , MORI YASUKI , NARAHARA TOSHIKAZU
IPC分类号： G03G5/06 , G03G5/043 , G03G5/047 , H01L31/08
摘要： PURPOSE:To obtain high sensitivity and superior durability by dividing the electrostatic charge transfer layer of a composite type photosensitive body into the upper and lower layers and interposing an interlayer capable of transferring charge. CONSTITUTION:The charge transfer layer of a composite type photosensitive body formed on a conductive substrate is divided into the upper and lower layers and an interlayer capable of transferring charge between both. The concn. of the charge transfer material in a charge transfer layer II formed on the interlayer and located near the surface of the photosensitive body is lowered as compared with that in the transfer layer I formed on a charge generating layer, and said concn. is >=15% in the layer I ,

8. 发明专利

JPS6020969A NOVEL METAL-FREE PHTHALOCYANINE CRYSTAL POLYMORPHISM AND PRODUCTION THEREOF 失效
公开(公告)号：JPS6020969A
公开(公告)日：1985-02-02
申请号：JP12827283
申请日：1983-07-13
申请人： TOYO INK MFG CO , HITACHI LTD
发明人： TAKANO SHIGEMASA , SAWADA MANABU , KUMANO ISAO , TSUNODA ATSUSHI , OKA HIROYUKI , MORI YASUKI
IPC分类号： C07D487/22 , C09B67/50
摘要： PURPOSE:To obtain the titled crystal polymorphism having specific greenish tint and excellent resistance to heat and solvents, by stirring an alpha-type metal-free phthalocyanine or milling it with mechanical stress for a sufficient period of time to convert its crystal form into other one. CONSTITUTION:An alpha-type metal-free phthalocyanine is stirred or milled with mechanical stress at 50-180 deg.C, pref. 60-130 deg.C for a sufficient period of time to convert its crystal form into other one, whereby the desired metal-free phthalocyanine crystal polymorphism characterized by an X-ray diffraction pattern with intensive lines at Bragg angles (2theta+ or -0.2 deg.) of 7.5, 9.1, 16.8, 17.3, 20.3, 21.4 and 27.4 can be obtd. Examples of the alpha-type phthalocyanines to be used are those prepd. according to method described by Moser and Thomas. The particles of the resulting crystal polymorphism are very soft and can be easily dispersed in a vehicle so that when the particles are incorporated in paints, the paints do not suffer lowering in tinting power and thickening during storage.

9. 发明专利

JPS59155852A Electrophotographic sensitive body and its manufacture 失效
标题翻译：电子感应敏感体及其制造
公开(公告)号：JPS59155852A
公开(公告)日：1984-09-05
申请号：JP2923583
申请日：1983-02-25
申请人： Hitachi Koki Co Ltd , Hitachi Ltd
发明人： KONUMA SHIGEHARU , TAMAHASHI KUNIHIRO , HOSOYA AKIRA , MORI YASUKI , MORISHITA YASUSADA , HARUKI SHINICHI
IPC分类号： G03G5/08
CPC分类号： G03G5/08
摘要： PURPOSE:To improve reproducibility of electrophotographic characteristics, sensitivity to He-Ne laser beams, and heat resistance and to extend a life by making the alloy element concn. of the Te-contg. layer of an Se type photosensitive body almost constant in the film thickness direction. CONSTITUTION:The alloy element concn. of the Te-contg. layer (Te-Se alloy layer) 4 of an Se type photosensitive body formed on a conductive substrate 1 is made almost constant in the film thickness direction. The Se photosensitive body is obtained by laminating an Se layer 3 and the layer 4 successively on the substrate 1. The layer 4 is formed by vapor deposition at a temp. about 100 deg.C higher than that of the liquid phase line of the binary constitutional diagram. The layer 4 thus formed makes the content of Te constant in the film thickness direction, enhances glass transition point and heat resistance, and extends its life, and further, eliminates scattering of electrophotographic characteristics, and enhances reproducibility. Since the Te content has correlation with, e.g. sensitivity to He-Ne laser beams, the sensitivity can be held at the optimum value by controlling the Te content.
摘要翻译：目的：提高电子照相特性的再现性，对He-Ne激光束的敏感性和耐热性，并延长使用合金元素的寿命。的Te-contg。 Se型感光体层在膜厚度方向上几乎恒定。构成：合金元素浓度的Te-contg。形成在导电基板1上的Se型感光体的层（Te-Se合金层）4在膜厚度方向上几乎恒定。 Se感光体通过在基板1上依次层叠Se层3和层4而获得。层4通过在温度下气相沉积形成。比二元结构图的液相线高约100℃。由此形成的层4使Te的含量在膜厚方向上保持恒定，提高玻璃化转变点和耐热性，延长寿命，进一步消除电子照相特性的散射，提高再现性。由于Te含量与对He-Ne激光束的灵敏度，可以通过控制Te含量将灵敏度保持在最佳值。

10. 发明专利

JPS5941370A White ink composition for ink jet recording 失效
标题翻译：用于墨水喷射记录的白色油墨组合物
公开(公告)号：JPS5941370A
公开(公告)日：1984-03-07
申请号：JP13516682
申请日：1982-08-04
申请人： Dainichi Seika Kogyo Kk , Hitachi Ltd
发明人： SHIMIZU RIYUUICHI , MORI YASUKI , KAWANISHI TSUNEAKI , ISOO OSAMU , MORISHITA YASUSADA , HOSODA TOORU
IPC分类号： C09D11/00
CPC分类号： C09D11/36
摘要： PURPOSE: To provide titled composition of adequate viscosity and resistivity and highly stable dispersibility, capable of clear printing on such dark and/or black color-based items as wood, steel plate and pipe, comprising a colorant consisting of white pigment of specific particle size, solvent, and integrating resin.
CONSTITUTION: The objective composition comprising, preferably (A) 5W40wt% of a white pigment with a particle size ≤3μm (pref. titanium dioxide), (B) 55W 90wt% of an organic solvent such as ethanol, methylethyl ketone (pref. containing 2W10wt% of an acetic acid ester), (C) 0.3W1.0pt.wt. per 1pt.wt. of the white pigment, of an integrating resin such as a rosin-modified maleic acid resin or ketone resin, and (E) 0.25W5wt% of a resistivity regulator for bringing the resistivity of the final ink to 2,000Ω.cm or lower (e.g., lithium nitrate, sodium thiocyanate).
USE: For steel plate provided with corrosion-proof treatment, oxidized film-coated steel plate, tin-deposited iron plate, etc.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：提供具有足够的粘度和电阻率和高度稳定的分散性的标题组合物，能够在诸如木材，钢板和管道的黑色和/或黑色基色物品上清晰印刷，包括由特定粒度的白色颜料组成的着色剂，溶剂和整合树脂。构成：目标组合物优选包含（A）5-40重量％的粒度≤3μm的白色颜料（优选二氧化钛），（B）55-90重量％的有机溶剂如乙醇，甲基乙基酮（优选含有2-10重量％的乙酸酯），（C）0.3-1.0pt.wt。每1pt.wt 的白色颜料，松香改性马来酸树脂或酮树脂等一体化树脂，和（E）将最终油墨的电阻率提高到2000MEGA·cm以下的电阻率调节剂的0.25〜5wt％例如硝酸锂，硫氰酸钠）。用途：对于镀有防腐蚀处理的钢板，氧化膜涂钢板，镀锡铁板等

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