Invention Grant
- Patent Title: Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium
- Patent Title (中): 溅射靶，制造靶的方法，利用溅射靶制造的光记录介质以及制造光记录介质的方法
-
Application No.: US943601Application Date: 1997-10-03
-
Publication No.: US6127016APublication Date: 2000-10-03
- Inventor: Katsuyuki Yamada , Hiroko Iwasaki , Yukio Ide , Makoto Harigaya , Yoshiyuki Kageyama , Hiroshi Deguchi , Masaetsu Takahashi , Yoshitaka Hayashi
- Applicant: Katsuyuki Yamada , Hiroko Iwasaki , Yukio Ide , Makoto Harigaya , Yoshiyuki Kageyama , Hiroshi Deguchi , Masaetsu Takahashi , Yoshitaka Hayashi
- Applicant Address: JPX Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JPX Tokyo
- Priority: JPX6-332532 19941213
- Main IPC: B22F1/00
- IPC: B22F1/00 ; B22F3/10 ; B32B3/00 ; B32B3/02 ; C22C1/04 ; C23C14/06 ; C23C14/34 ; G11B7/243 ; G11B7/253 ; G11B7/2534 ; G11B7/254 ; G11B7/2542 ; G11B7/258 ; G11B7/2585 ; G11B7/259 ; G11B7/2595 ; G11B7/26
Abstract:
A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent elemets Ag, In, Te and Sb with the respective atomic percent (atom. %) of .alpha., .beta., .gamma. and .delta. thereof being in the relationship of 2.ltoreq..alpha..ltoreq.30, 3.ltoreq..beta..ltoreq.30, 10.ltoreq..gamma..ltoreq.50, 15.ltoreq..delta..ltoreq.83 and .alpha.+.beta.+.gamma.+.delta.=100, and a method of producing the above sputtering target is provided. A phase-change type optical recording medium includes a recording layer containing as constituent elements Ag, In, Te and Sb with the respective atomic percent of .alpha., .beta., .gamma. and .delta. thereof being in the relationship of 0
Public/Granted literature
- USD347461S Toy space command module Public/Granted day:1994-05-31
Information query
