Dates are in [YYYY-MM-DD] or [MM-DD] format.
| Japan | Other | ||
|---|---|---|---|
| 1948 | - | Shannon: A Mathematical Theory of Communication | |
| 1951 | - | Huffman: A method for the construction of minimum-redundancy codes | |
| 1977 | - | Ziv-Lempel paper (LZ77) | |
| 1978 | - | Ziv-Lempel paper (LZ78) | |
| 1979 | - | - | |
| 1980 | - | - | |
| 1981 | - | - | |
| 1982 | - | Storer-Szymanski paper (LZSS) | |
| 1983 | - | [06-20] USP 4,558,302 (Welch) [1985-12-10 granted] | |
| 1984 | - | Welch paper (LZW) | |
| 1985 | - | ||
| 1986 | - | [03-03] USP 4,701,745 (Waterworth) [1987-10-20 granted] PKWARE founded  | |
| 1987 | - | - | |
| 1988 | [05-01] lzss.c (Okumura) [06-??] LArc (Miki) [08-27] lzari.c (Okumura) [11-??] lzhuf.c (Yoshizaki) [12-??] LHarc (Yoshizaki)  | [04-29] USP 4,906,991 (Fiala and Greene) [1990-03-06 granted] [05-10] USP 4,744,028 (Karmarkar) granted [1985-04-19 filed]  | |
| 1989 | [07-02] LHA algorithm proposal (Okumura) [07-10] "LHa" name proposal (Masuyama)  | [08-??] PKZIP 1.0 [10-06] USP 5,003,307 (Whiting) [1991-03-26 granted] Fiala-Greene paper (LZFG)  | |
| 1990 | [11-??] LH 2.0 (Yoshizaki) | - | |
| 1991 | [02-??] LHa (later LHA) 2.10 (Yoshizaki) | [09-21] Zip 1.0 | [10-??] PKZIP 1.93a (deflate) | 
| 1992 | - | [10-31] gzip 0.1 [12-28] PKZIP 2.04C (1st 2.0 series)  | |
| 1993 | - | [02-04] gzip 1.0 | |
| 1994 | - | - | |
| 1995 | - | - | |
| 1996 | - | - | |
| 1997 | - | - | |
| 1998 | - | - | |
| 1999 | - | [10-11] David Huffman died | |
| 2000 | - | [04-14] Phil Katz died at the age of 37 | |
| 2001 | - | [02-26] Claude Shannon died | 
Haruhiko Okumura <okumura@matsusaka-u.ac.jp>
Last modified: 2003-02-18 14:16:55