<s>
,	O
formerly	O
Toshiba	O
Client	O
Solutions	O
Co.	O
,	O
Ltd.	O
,	O
is	O
a	O
Japanese	O
personal	B-Device
computer	I-Device
manufacturer	O
owned	O
by	O
Sharp	O
Corporation	O
;	O
it	O
was	O
owned	O
by	O
,	O
and	O
branded	O
as	O
,	O
Toshiba	O
from	O
1958	O
to	O
2018	O
.	O
</s>
<s>
It	O
claims	O
its	O
Toshiba	B-Device
T1100	I-Device
,	O
launched	O
in	O
1985	O
,	O
as	O
the	O
first	O
mass-market	O
laptop	B-Device
PC	I-Device
.	O
</s>
<s>
Toshiba	O
had	O
used	O
the	O
brand	O
name	O
"	O
DynaBook	B-General_Concept
"	O
or	O
"	O
dynabook	B-General_Concept
"	O
since	O
1989	O
,	O
but	O
Dynabook	B-General_Concept
became	O
the	O
worldwide	O
brand	O
in	O
2019	O
.	O
</s>
<s>
,	O
Dynabook	B-Operating_System
Inc	I-Operating_System
.	I-Operating_System
had	O
162.9	O
billion	O
yen	O
(	O
US$	O
billion	O
)	O
in	O
annual	O
sales	O
and	O
2,680	O
employees	O
;	O
,	O
Dynabook	B-General_Concept
Americas	O
described	O
the	O
business	O
as	O
being	O
a	O
"	O
$60	O
billion	O
global	O
company	O
employing	O
nearly	O
200,000	O
in	O
30	O
countries	O
"	O
.	O
</s>
<s>
Its	O
name	O
was	O
changed	O
to	O
Toshiba	O
Typewriter	O
Co.	O
,	O
Ltd	O
.	O
in	O
1958	O
,	O
Toshiba	O
Business	O
Machines	O
Company	O
in	O
1968	O
,	O
Toshiba	B-Operating_System
Information	I-Operating_System
Systems	I-Operating_System
Corporation	I-Operating_System
in	O
1984	O
after	O
merging	O
in	O
Toshiba	O
Business	O
Computers	O
Company	O
,	O
and	O
Toshiba	O
Client	O
Solutions	O
Co.	O
,	O
Ltd	O
.	O
in	O
2016	O
.	O
</s>
<s>
The	O
dynabook	B-General_Concept
was	O
a	O
portable	O
computer	O
concept	O
first	O
introduced	O
by	O
Alan	O
C	O
.	O
Kay	O
in	O
the	O
1960s	O
and	O
1970s	O
.	O
</s>
<s>
The	O
Dynabook	B-General_Concept
trademark	O
was	O
already	O
owned	O
by	O
other	O
companies	O
in	O
Japan	O
and	O
the	O
United	O
States	O
:	O
Toshiba	O
did	O
n't	O
use	O
the	O
name	O
in	O
the	O
U.S.	O
,	O
but	O
ASCII	O
Corporation	O
had	O
acquired	O
the	O
rights	O
in	O
Japan	O
,	O
so	O
Toshiba	O
paid	O
a	O
fee	O
to	O
ASCII	O
to	O
use	O
the	O
name	O
there	O
.	O
</s>
<s>
The	O
first	O
Toshiba	O
computer	O
with	O
the	O
name	O
DynaBook	B-General_Concept
was	O
announced	O
on	O
June	O
26	O
,	O
1989	O
.	O
</s>
<s>
In	O
August	O
1989	O
,	O
Mizoguchi	O
sent	O
a	O
letter	O
and	O
a	O
Toshiba	O
DynaBook	B-General_Concept
T1000SE	O
to	O
Kay	O
in	O
Boston	O
,	O
and	O
in	O
December	O
Kay	O
was	O
Mizoguchi	O
's	O
guest	O
at	O
Toshiba	O
.	O
</s>
<s>
TCS	O
then	O
changed	O
its	O
corporate	O
name	O
to	O
Dynabook	B-General_Concept
.	O
</s>
<s>
Sharp	O
exercised	O
a	O
call	O
option	O
on	O
the	O
remaining	O
19.9	O
%	O
of	O
the	O
shares	O
on	O
June	O
30	O
,	O
2020	O
,	O
making	O
Dynabook	B-General_Concept
wholly	O
owned	O
by	O
Sharp	O
in	O
August	O
2020	O
,	O
and	O
indicated	O
plans	O
for	O
Dynabook	B-General_Concept
to	O
have	O
an	O
initial	O
public	O
offering	O
in	O
2020	O
or	O
2021	O
.	O
</s>
