专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH05426B2 失效
公开(公告)号：JPH05426B2
公开(公告)日：1993-01-05
申请号：JP4711083
申请日：1983-03-23
申请人： RICOH KK
发明人： ARIGA TAMOTSU , FUJII TADASHI , MURAKAMI KAKUJI , AKUTSU HIDEKAZU , SHIMADA MASARU
IPC分类号： C09D11/00 , C09B29/033 , C09B29/036 , C09B35/03 , C09D11/02 , C09D11/10 , H01L21/331 , H01L21/8222 , H01L21/8248 , H01L27/06 , H01L27/14 , H01L29/732 , H01L31/10

2. 发明专利

JPH0448637B2 失效
公开(公告)号：JPH0448637B2
公开(公告)日：1992-08-07
申请号：JP2916983
申请日：1983-02-23
申请人： RICOH KK
发明人： AKUTSU HIDEKAZU , FUJII TADASHI , MURAKAMI KAKUJI , ARIGA TAMOTSU
IPC分类号： C09D11/00 , B41M5/00 , B41M5/52

3. 发明专利

JPS6486163A SMALL-SIZED COPYING DEVICE 失效
公开(公告)号：JPS6486163A
公开(公告)日：1989-03-30
申请号：JP19586688
申请日：1988-08-05
申请人： RICOH KK
发明人： KOIZUMI YUTAKA , AKUTSU HIDEKAZU
IPC分类号： G03G15/00 , G03G15/30
摘要： PURPOSE:To miniaturize the device and to secure the conveyance stability of a recording medium by setting the diameter of a drum-shaped latent image carrier to 10-40mm, setting the conveyance path from a paper feed part of the recording medium to a paper discharge part almost linearly and providing a 1st toner recovery part above the conveyance path and a 2nd toner recovery part below it. CONSTITUTION:The diameter of the drum-shaped latent image carrier 10 is determined between 10 and 40mm and the conveyance path LOP from the part 17 for feeding the recording medium S to the latent image carrier 10 to the paper discharging part 23 is set almost linearly. Then the 1st toner recovery part 11 is provided above the conveyance path LOP and the 2nd toner recovery part 19 is provided below the conveyance path LOP. For the purpose, the latent image carrier is reduced in diameter to separate the recording medium from the image carrier with the elastic force the recording medium itself has, thereby eliminating the need for a separating device. Further, the conveyance path from the paper feeding part to the paper discharging part is set almost linearly and the 1st and 2nd toner recovery parts are arranged above and below the conveyance path, so the movement of the recording medium is never impeded. Consequently, the device is miniaturized and the conveyance stability of the recording medium is secured.

4. 发明专利

JPS6345593B2 失效
公开(公告)号：JPS6345593B2
公开(公告)日：1988-09-09
申请号：JP14660880
申请日：1980-10-20
申请人： RICOH KK
发明人： AKAMATSU HIROYUKI , ENOKI SHIGEKAZU , SUZUKI HIROHARU , KOYAMA HAJIME , KANEKO TOSHIO , AKUTSU HIDEKAZU
IPC分类号： G03G15/09 , G03G21/10

5. 发明专利

JPS6313180B2 失效
公开(公告)号：JPS6313180B2
公开(公告)日：1988-03-24
申请号：JP1870978
申请日：1978-02-21
申请人： RICOH KK
发明人： KOJIMA AKIO , AKUTSU HIDEKAZU
IPC分类号： G03G5/05 , G03G5/04 , G03G5/06 , H01L31/08

6. 发明专利

JPS6313179B2 失效
公开(公告)号：JPS6313179B2
公开(公告)日：1988-03-24
申请号：JP1544078
申请日：1978-02-15
申请人： RICOH KK
发明人： AKUTSU HIDEKAZU , KOJIMA AKIO
IPC分类号： G03G5/05 , G03G5/04 , G03G5/06 , H01L31/08

7. 发明专利

JPS60199079A WATER-BASED INK FOR INK JET 失效
公开(公告)号：JPS60199079A
公开(公告)日：1985-10-08
申请号：JP5355484
申请日：1984-03-22
申请人： RICOH KK
发明人： AKUTSU HIDEKAZU , MURAKAMI KAKUJI , ARIGA TAMOTSU
IPC分类号： C09D11/00 , C09D11/328 , C09D11/38
摘要： PURPOSE:The titled water-based ink that contains 2 kinds of specific dyes, a water-soluble, high-boiling organic solvent, water and antiseptic and fungicide, thus developing good magenta tone and giving images of high light-resistance recorded on general paper. CONSTITUTION:The objective water-based ink contains (A) a dye of high light resistance of formula I [R1, R2 are formulas II, III; R3-R8 are lower alkyl, amino, sulfonic group (alkali metal salt), COOH (alkali metal salt); k, l, m, n are 0-2] such as a compound of formula IV and a halogenated xanthene dye of formula V, (B) a water-soluble, high-boiling organic solvent, boiling over 100 deg.C, such as glycerol or diethylene glycol, (C) water and (D) antiseptic and fungicide.

8. 发明专利

JPS60187581A INK JET RECORDING SHEET 失效
公开(公告)号：JPS60187581A
公开(公告)日：1985-09-25
申请号：JP4295584
申请日：1984-03-08
申请人： RICOH KK
发明人： AKUTSU HIDEKAZU , MURAKAMI KAKUJI , ARIGA TAMOTSU
IPC分类号： B41M5/00 , B41M5/52 , C09D11/00
摘要： PURPOSE:To provide an ink jet recording sheet free of variations in color tone and excellent in water resistance and light resistance of printed images, by incorporating a water soluble tin salt in the surface of a recording sheet comprising a dye having at least one sulfonyl group. CONSTITUTION:The ink jet recording sheet used for recording by jetting an ink liquid comprises a dye having at least one sulfonyl group as a colored component together with water and a water-soluble organic solvent having a high boiling point, and a water-soluble tin salt is incorporated in the surface of the recording sheet. The tin salt may be sulfate [Sn(SO4)2], chloride [SnCl4], nitrate [Sn(NO3)4], phosphate, nitrite, sulfite, acetate or the like.

9. 发明专利

JPS60110493A REGENERATION OF INK SHEET 失效
公开(公告)号：JPS60110493A
公开(公告)日：1985-06-15
申请号：JP21840483
申请日：1983-11-20
申请人： RICOH KK
发明人： AKUTSU HIDEKAZU
IPC分类号： B41M5/392 , B41J17/38 , B41J17/40 , B41J31/14 , B41M5/26 , B41M5/382
摘要： PURPOSE:To make it possible to accelerate the regeneration speed of an ink sheet, by adhering powdery ink to an ink layer by electrostatic force receiving from the electric field between an electrodepositing electrode and an opposed electrode and fixing the same to a base layer under pressure and heating. CONSTITUTION:An ink sheet 1 passes between an electrodepositing electrode 9 and an opposed electrode sleeve 14 and enters between pressing and heating rollers 13, 13. A voltage applying circuit 18 is connected to the opposed electrode sleeve 14 and an electric field is formed between the electrodepositing electrode 9 and the opposed electrode sleeve 14 by voltage applying circuits 11, 18. Powdery ink 17 is adhered to the omitted part of the ink layer 1b of the ink sheet 1 by the approach to the ink support 1a thereof. The ink sheet 1 is inserted into the nip between the pressing and heating rollers 13, 13 which, in turn, apply predetermined pressure and heat to the powdery ink 17 of the omitted part 1c of the ink layer 1b to fix the same to the ink support 1a through plastic deformation. By this mechanism, the acceleration of the regeneration speed of the ink sheet is achieved.

10. 发明专利

JPS6046288A INK JET RECORDING METHOD 失效
公开(公告)号：JPS6046288A
公开(公告)日：1985-03-13
申请号：JP6423383
申请日：1983-04-12
申请人： RICOH KK
发明人： AKUTSU HIDEKAZU , FUJII TADASHI , MURAKAMI KAKUJI , ARIGA TAMOTSU
IPC分类号： B41M5/00 , B41M5/52
摘要： PURPOSE:To contrive to enhance color tone, preservability and water resistance, by using an ink which comprises a monoazopyrazolone dye and a recording medium which comprises at least one of a water-soluble salt of an at least bivalent metal, a polyamine, an alkylamine salt and a quarternary ammonium salt. CONSTITUTION:A mixture of a monoazopyrazolone dye of the formula, water and other additives is dissolved by agitating with heating, and is filtered to prepare an ink. A composition containing at least one of a water-soluble salt of an at least bivalent metal, an alkylamine salt, a polyamine and a quarternary ammonium salt is applied to a base provided with a surface coat layer, is dried, and the resultant material is subjected to hot press calendering to produce a recording medium. accordingly, color tone of a yellow color, light resistance and water resistance are enhanced.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式