| 年 | 年齢 | Date when ISPSD was held, Venu |
| 1988（昭和63） | 28歳 |
ISPSD '88 Aug. 22-23, Shinjuku, Tokyo, Japan. 0th
|
| 1989（昭和64-平成元） | 29歳 |
ISPSD '89 Tokyo, Japan. 1st
|
| 1990（平成2） | 30歳 |
ISPSD '90 Apr. 4-6, 1990, Tokyo, Japan. 2nd
|
| 1991（平成3） | 31歳 |
ISPSD '91 Apr. 22-24, 1991, Stouffer Harborplace Hotel, Baltimore, Maryland, USA. 3rd
|
| 1992（平成4） | 32歳 |
ISPSD '92 May 19-21, 1992, Waseda University, Tokyo, Japan. 4th
|
| 1993（平成5） | 33歳 |
ISPSD '93 May 18-20, 1993, Monterey, California, USA. 5th
|
| 1994（平成6） | 34歳 |
ISPSD '94 May 31-Jun. 2, 1994, Savos, Switzerland. 6th
|
| 1995（平成7） | 35歳 |
ISPSD '95 May 23-25, 1995, Pacifico, Yokohama, Japan. 7th
|
| 1996（平成8） | 36歳 |
ISPSD '96 May 20-23, 1996, Hyatt Regency Maui, Hawaii, USA. 8th
|
| 1997（平成9） | 37歳 |
ISPSD '97 May 26 - 29, 1997, ETG-Conference, Weimar, Germany. 9th
|
| 1998（平成10） | 38歳 |
ISPSD '98 Jun. 3-6, 1998, Rihga Royal Hotel, Kyoto, Japan. 10th
|
| 1999（平成11） | 39歳 |
ISPSD '99 May 26-28, 1999, Crowne Plaza, Toronto, Ontario, Canada. 11th
|
| 2000（平成12） | 40歳 |
ISPSD '00 May 22-25, 2000, Centre De Congres Pierre Baudis Toulouse, France. 12th
Nov. 29 ISPSD'01 Paper Selection Meeting Osaka International Convention Center, Osaka, Japan
|
| 2001（平成13） | 41歳 |
ISPSD '01 Jun. 4-7, 2001, Osaka International Convention Center, Osaka, Japan. 13th
|
| 2002（平成14） | 42歳 |
ISPSD '02 May 28-Jun. 1, 2002, Santa Fe, New Mexico, USA. 14th
|
| 2003（平成15） | 43歳 |
ISPSD '03 Apr. 14-17, 2003, Cambridge, UK. 15th
|
| 2004（平成16） | 44歳 |
ISPSD '04 May 24-27, 2004, Kitakyushu International Conference Center Japan. 16th
|
| 2005（平成17） | 45歳 |
ISPSD '05 May 23-26, 2005, Santa Barbara, CA, USA. 17th ■
|
| 2006（平成18） | 46歳 |
ISPSD '06 Jun. 4-8, 2006, Napoli, Italy. 18th ■
|
| 2007（平成19） | 47歳 |
ISPSD '07 May 27-31, Jeju Island, Korea. 19th ■
|
| 2008（平成20） | 48歳 |
ISPSD '08 May 18-22 Wyndham Orlando Resort, Orlando, FL, USA. 20th
|
| 2009（平成21） | 49歳 |
ISPSD '09 Jun. 14-17 AXA Winterthur Auditorium, Barcelona, Spain. 21th
|
| 2010（平成22） | 50歳 |
ISPSD '10 Jun. 6-10, International Conference Center Hiroshima, Hiroshima, Japan. 22th ■
|
| 2011（平成23） | 51歳 |
ISPSD2011 May 22-26 Paradise Point Resort, San Diego, USA. 23th
|
| 2012（平成24） | 52歳 |
ISPSD2012 Jun. 3-7 Oud Sint-Jan Conference Centre, Bruges, Belgium. 24th
ISPSD2013 Paper Selection Meeting Dec. 16
|
| 2013（平成25） | 53歳 |
ISPSD2013 Paper Selection Meeting Feb. 1 Jinbo-cho ICS Convention Design, Inc.
ISPSD2013 May 27-30 Ishikawa Ongakudo, Ishikawa, Japan. 25th
|
| 2014（平成26） | 54歳 |
ISPSD2014 Jun. 15-19 The Hilton Waikoloa Village Resort, Waikoloa, HI, USA. 26th
|
| 2015（平成27） | 55歳 |
ISPSD2015 May 10-14 Kowloon Shangri-La, Hong Kong, China. 27th
|
| 2016（平成28） | 56歳 |
ISPSD2016 Jun. 12-16 Palace Zofin, Prague, Czech Republic. 28th
|
| 2017（平成29） | 57歳 |
ISPSD2017 May 28-Jun. 1 Royton Sapporo, Sapporo, Hokkaido, Japan. 29th
|
| 2018（平成30） | 58歳 |
ISPSD2018 May 13-18 Hilton Hotel, Chicago, USA. 30th
|
| 2019（令和1） | 59歳 |
ISPSD2019 May 19-23 Shanghai Marriott Hotel, Shanghai, China. 31th
|
| 2020（令和2） | 60歳 |
ISPSD2020 Sep 17-21 Hofburg Palace, Vienna, Austria. 32th <--- not held
ISPSD2020 Sep. 13-18 VIRTUAL CONFERENCE 32th
|
| 2021（令和3） | 61歳 |
ISPSD2021 May 19-23 Nagoya Congress Center, Nagoya, Japan. 33th <--- not held
ISPSD2021 May 30-Jun. 3 VIRTUAL CONFERENCE 33th
|
