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1. 发明专利

DE3374455D1 ELECTROPHOTOGRAPHIC RECORDING MEDIUM 未知
公开(公告)号：DE3374455D1
公开(公告)日：1987-12-17
申请号：DE3374455
申请日：1983-04-20
申请人： HITACHI LTD , TOYO INK MFG CO
发明人： KAKUTA ATSUSHI , OKA HIROYUKI , SUZUKI SHIGEO , ARAYA KOTARO , MORI YASUKI , MORISHITA HIROSADA , TAKANO SHIGEMASA , SAWADA MANABU , KUMANO ISAO
IPC分类号： C09B23/06 , C09B23/14 , C09B47/04 , C09B47/073 , C09B47/10 , C09B47/16 , C09B47/26 , C09B47/30 , C09B67/12 , C09B67/22 , C09B67/50 , G03G5/06

2. 发明专利

DE3034564A1 未知
公开(公告)号：DE3034564A1
公开(公告)日：1981-03-19
申请号：DE3034564
申请日：1980-09-12
申请人： HITACHI LTD
发明人： SUZUKI SHIGEO , KAKUTA ATSUSHI , OKA HIROYUKI , MORI YASUKI , MORISHITA HIROSADA
IPC分类号： G03G5/047 , G03G5/06 , G03G5/07 , G03G5/08
摘要： A complex type electrophotographic plate comprising an electroconductive support and a charge generating layer and a charge transport layer characterized in that the charge generating layer contains at least a copper phthalocyanine and the charge transport layer contains at least a trinitrofluorenone, has excellent photosensitivity and adhesion to the support. There is also provided an electrophotographic method comprising a first step of charging an electrophotographic plate, a second step of exposing the electrophotographic plate to light and a third step of developing an electrostatic latent image formed on the electrophotographic plate directly or the electrostatic latent image transferred to a recording medium, characterized by using in the first step, as the electrophotographic plate, a complex type electrophotographic plate having a charge generating layer containing at least a copper phthalocyanine and a charge transport layer containing at least a nitrofluorenone and charging said electrophotographic plate positively with excellent recording properties.

3. 发明专利

DE3678732D1 未知
公开(公告)号：DE3678732D1
公开(公告)日：1991-05-23
申请号：DE3678732
申请日：1986-02-14
申请人： HITACHI LTD , NITTO DENKO CORP
发明人： OKA HIROYUKI , AKASAKA SHINICHI , OHARA SHUICHI , HATTORI SHINTAROO , MORI YASUKI , NARAHARA TOSHIKAZU , MATSUMOTO HIROSHI
IPC分类号： B41M5/26 , B41M5/395
摘要： A thermal transfer recording sheet comprising a substrate and ink layer formed thereon containing one or more sublimable dyes and a high-molecular-weight polyamide obtained from dimer acids as a binder is good in adherence of the ink layer to the substrate, and thermal transfer properties to give clear color hard copies.

4. 发明专利

DE3677867D1 未知
公开(公告)号：DE3677867D1
公开(公告)日：1991-04-11
申请号：DE3677867
申请日：1986-07-23
申请人： HITACHI LTD
发明人： OHARA SHUICHI NARUSAWA-APT , AKASAKA SINICHI , OKA HIROYUKI , HATTORI SHINTAROO
IPC分类号： B41M5/26 , B41M5/035 , B41M5/34 , B41M5/382 , B41M5/385 , B41M5/39 , B41M5/392
摘要： When the reflection density of the colorants of an ink layer is 1.3 after transfer onto a recording paper, a reflectance of yellow colorant lies in between two diagrams (D₁, D₂) shown in Fig. 1, a reflectance of magenta colorant lies in between two diagrams (D₃, D₄) shown in Fig. 2, and a reflectance of cyan colant lies in between two diagrams (D₅, D₆) shown in Fig. 3. A color ink sheet realizes an excellent hue, a high luminance factor and high chroma. A wide color specification range and clear image having a high color reproducibility is obtained.

5. 发明专利

DE3769889D1 未知
公开(公告)号：DE3769889D1
公开(公告)日：1991-06-13
申请号：DE3769889
申请日：1987-08-26
申请人： HITACHI LTD
发明人： OHARA SHUICHI , AKASAKA SHINIICHI , OKA HIROYUKI , HATTORI SHINTAROO , OYAMA RIEKO
IPC分类号： B41J2/32 , B41J2/325 , B41J17/00 , B41J31/00 , B41M5/34 , B41M5/382 , B41M5/50 , B41M5/52 , B41M5/26 , B41J31/05
摘要： The present invention provides a heat transfer printer, a heat transfer process and a heat transfer ink sheet (1; 11), where a letter or image or both is recorded by selectively heating a heat transfer ink sheet (1, 11) having ink layer regions each containing a sublimable or vaporizable dye by heating by a thermal head controlled by a controlling means, thereby selectively heat transferring the sublimated or vaporized dyes on a recording sheet (17), and is characterized by heat transferring a precoating layer (13) for the dyes from the ink sheet (1,11) onto the recording sheet (17) before the heat transfer recording, and then laying the ink sheet (1,11) on the precoating layer (13) transfered on the recording sheet (17) by the thermal head, thereby sublimating or vaporizing the dyes from the respective ink layers onto the precoating layer (13) and forming the letter or image or both on the recording sheet (17).

6. 发明专利

DE3369206D1 COMPOSITE TYPE PHOTOSENSITIVE MEMBER FOR ELECTROPHOTOGRAPHY 未知
公开(公告)号：DE3369206D1
公开(公告)日：1987-02-19
申请号：DE3369206
申请日：1983-04-20
申请人： HITACHI LTD
发明人： KAKUTA ATSUSHI , OKA HIROYUKI , SUZUKI SHIGEO , ARAYA KOTARO , MORI YASUKI , MORISHITA HIROSADA
IPC分类号： C09B23/01 , C09B23/14 , C09B47/30 , C09B67/22 , C09B67/48 , G03G5/047 , G03G5/06 , C09B67/50 , G03G5/09

7. 发明专利

JPH0828422A IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0828422A
公开(公告)日：1996-01-30
申请号：JP16653594
申请日：1994-07-19
申请人： HITACHI LTD
发明人： OKA HIROYUKI
IPC分类号： F02P7/02
摘要： PURPOSE:To control noise by forming at least one of tip parts of a rotor electrode and a side electrode in a composition where silicon resin is used as a binder and almina is added. CONSTITUTION:The rotor 3 of a distributor has a rotor electrode 5 composed of brass stuck onto the upper face of an insulating member 4, and a side electrode 8 in the peripheral edge of a central terminal 7. A composite substance composed of Al2O3 80-90vol% and silicon resin serving as a binder is used for at least a part of the conductive body of the rotor electrode 5 and the side electrode 8. The composite substance is soft and excellent in processability, and when it is heated after forming, the silicon resin turns into a siloxane compound having Si-O-Si connection and sharply improve heat resistance, and when it is heated above 500 deg.C, the siloxane compound turns into almina system ceramics. Thus excellent durability can be obtained, and radio wave noise emitting source is directly shut off for obtaining a sufficient preventing effect to the radio wave noise.

8. 发明专利

JPH051760B2 失效
公开(公告)号：JPH051760B2
公开(公告)日：1993-01-08
申请号：JP17750286
申请日：1986-07-30
申请人： HITACHI LTD
发明人： OOHARA SHUICHI , AKASAKA SHINICHI , HATSUTORI SHINTARO , OKA HIROYUKI
IPC分类号： B41M5/26 , B41M5/035 , B41M5/34 , B41M5/382 , B41M5/385 , B41M5/39 , B41M5/392

9. 发明专利

JPH0286966A DISTRIBUTOR CAP AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0286966A
公开(公告)日：1990-03-27
申请号：JP23930588
申请日：1988-09-24
申请人： HITACHI LTD
发明人： OKA HIROYUKI
IPC分类号： F02P7/02
摘要： PURPOSE:To aim at the complete fusion deposition between both primary and secondary molded resin layers by setting the melt index value to be larger in the primary molding than the secondary one in the case where thermoplastic resin with an insulating property is doubly applied to an electrode being installed in a cap body by means of these primary and secondary molding processes. CONSTITUTION:In a side electrode 2, its body part is embedded in a top plate part 1a of a cap body 1. One end 2a is exposed out of the cap inside and opposed to an electrode of a rotor 7, while a terminal 3 is set up in the other end 2b so as to be situated in a cap side wall part 1b. In addition, primary molding thermoplastic resin 4 covers the circumference of the side electrode 2 excepting both ends 2a, 2b of it. Moreover, secondary molding thermoplastic resin 5 forms the cap body. In this case, as for the melt index value, the primary molding resin 4 is set to be larger than the secondary molding resin 5.

10. 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

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