公开(公告)号：JPS5111197A

公开(公告)日：1976-01-29

申请号：JP8170874

申请日：1974-07-18

Applicant: TORAY INDUSTRIES ,  JAPAN BROADCASTING CORP

Inventor： HAYASHIDA HIDEO ,  SHINJO KYOKAZU ,  OONO MAMORU ,  HIROSE SHOICHI ,  ENDO AKITARO ,  SOEDA FUSAMI ,  YOKOYAMA KATSUYA ,  ITO KOICHI ,  KADOI RYOJI

IPC: G11B5/66 ,  G11B5/00 ,  G11B5/64 ,  G11B5/65 ,  G11B5/73 ,  H01F10/00 ,  H01F10/16 ,  H01F41/24

公开(公告)号：JPS51105803A

公开(公告)日：1976-09-20

申请号：JP3018075

申请日：1975-03-14

Applicant: TORAY INDUSTRIES

Inventor： SHINJO KYOKAZU ,  HAYASHIDA HIDEO ,  SAKAKURA NOBUO ,  OONO MAMORU

IPC: G11B5/66 ,  C23C18/16 ,  C23C18/18 ,  C23C18/31 ,  C23C18/34 ,  C23C18/52 ,  G11B5/64 ,  G11B5/667 ,  G11B5/73 ,  G11B5/738 ,  G11B5/84

公开(公告)号：JPS51310A

公开(公告)日：1976-01-06

申请号：JP6965774

申请日：1974-06-20

Applicant: TORAY INDUSTRIES

Inventor： HAYASHIDA HIDEO ,  SHINJO KYOKAZU ,  OONO MAMORU ,  HIROSE SHOICHI ,  ENDO AKITARO ,  SOEDA FUSAMI

IPC: G11B5/858 ,  G11B5/84

公开(公告)号：JPH0566335B2

公开(公告)日：1993-09-21

申请号：JP19744085

申请日：1985-09-05

Applicant: NIPPON TUNGSTEN ,  TORAY INDUSTRIES

Inventor： MYAHARA MICHITO ,  SASAKI TOYOSHIGE ,  MASAKI YOSHIKI ,  OONO MAMORU

IPC: C04B35/48

公开(公告)号：JPS5135311A

公开(公告)日：1976-03-25

申请号：JP10760474

申请日：1974-09-20

Applicant: TORAY INDUSTRIES ,  JAPAN BROADCASTING CORP

Inventor： SHINJO KYOKAZU ,  HAYASHIDA HIDEO ,  OONO MAMORU ,  ENDO AKITARO ,  HIROSE SHOICHI ,  YOKOYAMA KATSUYA ,  ITO KOICHI ,  KADOI RYOJI ,  SOEDA FUSAMI

IPC: G11B5/66 ,  G11B5/64 ,  G11B5/73 ,  G11B5/84

公开(公告)号：JPS5111198A

公开(公告)日：1976-01-29

申请号：JP8170974

申请日：1974-07-18

Applicant: TORAY INDUSTRIES ,  JAPAN BROADCASTING CORP

Inventor： HAYASHIDA HIDEO ,  SHINJO KYOKAZU ,  OONO MAMORU ,  SOEDA FUSAMI ,  ENDO AKITARO ,  HIROSE SHOICHI ,  YOKOYAMA KATSUYA ,  KADOI RYOJI

IPC: G11B5/66 ,  G11B5/62 ,  G11B5/64 ,  G11B5/65 ,  G11B5/73 ,  H01F10/00 ,  H01F10/16

公开(公告)号：JPS5111023A

公开(公告)日：1976-01-28

申请号：JP8171174

申请日：1974-07-18

Applicant: TORAY INDUSTRIES

Inventor： HAYASHIDA HIDEO ,  ENDO AKITARO ,  OONO MAMORU ,  SOEDA FUSAMI ,  HIROSE SHOICHI ,  SHINJO KYOKAZU

IPC: C23C18/36 ,  G11B5/64 ,  G11B5/858 ,  H01F10/00 ,  H01F41/26

公开(公告)号：JPS57132151A

公开(公告)日：1982-08-16

申请号：JP1752481

申请日：1981-02-10

Applicant: TORAY INDUSTRIES

Inventor： NAKASHIMA KIICHI ,  OONO MAMORU ,  KASHIWAGI RIKUO

IPC: G03G5/02 ,  G03G5/08 ,  G03G5/087

Abstract: PURPOSE:To suppress dark attenuation and to decrease the drop in contrast potential by setting the density of the dopants in the surface layer part of the CdS powder in a photosensitive layer at the specific value. CONSTITUTION:A conductive substrate 1, a photosensitive layer 2 formed thereon, and an insulation layer 3 formed on the layer 2 are provided, and the layer 2 binds the CdS powder contg. dopants with a binder, thereby forming a photoreceptor 4 for electrophotography. With this photoreceptor 4, the density of the dopants in the surface layer part of the CdS powder of the layer 2 is 10 - 10 (pieces/cm ) or the CdS powder is coated with an insulation characteristic film and the relation between the thickness (t)(mu) of said film, resistivity rho(OMEGA. cm) and the average radius (r)(mu) of the CdS powder is set at 10 . Dark attenuation is suppressed, the drop in contrast potential is decreased, contrast potential is taken large, and the degradation in image quality owing to ground strains, etc. is prevented.