Cho Oyu | 1999 NW side

A Japan expedition to Cho Oyu in 1999 via NW side, led by Taro Tanigawa. Summit reached on 28th September 1999. 4 members recorded.

Expedition Details

Field	Value
ID	3419
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY99306
Peak ID	CHOY
Year	1999
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Taro Tanigawa
Sponsor	Japan Cho Oyu and Shishapangma Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	344 w/Fra,Slov
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	1999-09-02
Summit Date	1999-09-28
Summit Time	0945
Summit Days	26
Total Days	31
Termination Date	1999-10-03
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	4
Summit Members	4
Member Deaths	0
Total Hired	0
Summit Hired	0
Hired Deaths	0
No Hired	True
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	Attempted Xixabangma
Campsites	BC(02/09),ABC(10/09,5700m),C1(17/09,6400m),C2(21/09,7000m),Smt(28/09)
Route Notes	On top 12:00 Chinese time (9:45 NST) by all 4 members, all before any French people. Okuda got frostbitten nose on 28th (his nose frostbitten '98 spring on Kangchenjunga and therefore sensitive). Left Cho Oyu on 3 Sept to Xixabangma where no success. Reached 6000m on SW Face, but clouds stopped from going further twice.
Accidents	Slight frostbite by Okuda on Cho Oyu
Achievement	-
Agency	Cosmo Treks
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2457229
Year	1999
Summit Success	True
O2 Summary	None
Route (lowercase)	nw side

Members

Field	Value
ID	25509
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99306
Member ID	02
Peak ID	CHOY
Year	1999
Season	3
First Name	Koji
Last Name	Nagakubo
Sex	M
Age	0
Birth Date	-
Year of Birth	1969
Calculated Age	30
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Works for landscape gardening business, sometimes in office
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1999-09-28
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0945
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	344
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2438159
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	koji nagakubo
Year of Birth	1969
Year	1999
Age at Expedition	30
Role	Member

Field	Value
ID	25510
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99306
Member ID	03
Peak ID	CHOY
Year	1999
Season	3
First Name	Kazusada
Last Name	Nakamura
Sex	M
Age	0
Birth Date	-
Year of Birth	1973
Calculated Age	25
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Works for landscape gardening business
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1999-09-28
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0945
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	344
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2439824
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kazusada nakamura
Year of Birth	1973
Year	1999
Age at Expedition	26
Role	Member

Field	Value
ID	25511
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99306
Member ID	04
Peak ID	CHOY
Year	1999
Season	3
First Name	Masakazu
Last Name	Okuda
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	33
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Travel agency office staff
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1999-09-28
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0945
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	344
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437230
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	masakazu okuda
Year of Birth	1966
Year	1999
Age at Expedition	33
Role	Member

Field	Value
ID	25512
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99306
Member ID	01
Peak ID	CHOY
Year	1999
Season	3
First Name	Taro
Last Name	Tanigawa
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	32
Citizenship	Japan
Status	Leader
Residence	Komae, Tokyo, Japan
Occupation	Works in sales department of liquor company
Leader	True
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1999-09-28
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0945
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	344
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437516
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	taro tanigawa
Year of Birth	1967
Year	1999
Age at Expedition	32
Role	Leader

4 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Koji Nagakubo	M	1969	Japan	Climber	Tokyo, Japan	Works for landscape gardening business, sometimes in office	Details Other expeditions
Kazusada Nakamura	M	1973	Japan	Climber	Tokyo, Japan	Works for landscape gardening business	Details Other expeditions
Masakazu Okuda	M	1966	Japan	Climber	Tokyo, Japan	Travel agency office staff	Details Other expeditions
Taro Tanigawa	M	1967	Japan	Leader	Komae, Tokyo, Japan	Works in sales department of liquor company	Details Other expeditions

References

0 recorded references.