<s>
Marcel	B-Algorithm
Joseph	I-Algorithm
Vogel	I-Algorithm
(	O
April	O
14	O
,	O
1917	O
–	O
February	O
12	O
,	O
1991	O
)	O
was	O
a	O
research	O
scientist	O
working	O
at	O
the	O
IBM	O
San	O
Jose	O
Research	O
Center	O
for	O
27	O
years	O
.	O
</s>
<s>
For	O
the	O
next	O
decade	O
the	O
firm	O
developed	O
a	O
variety	O
of	O
new	O
products	O
:	O
fluorescent	O
crayons	O
,	O
tags	O
for	O
insecticides	B-Application
,	O
a	O
black	O
light	O
inspection	O
kit	O
to	O
determine	O
the	O
secret	O
trackways	O
of	O
rodents	O
in	O
cellars	O
from	O
their	O
urine	O
and	O
the	O
psychedelic	O
colors	O
popular	O
in	O
"	O
new	O
age	O
"	O
posters	O
.	O
</s>
<s>
Among	O
these	O
was	O
the	O
magnetic	O
coating	O
for	O
the	O
24	O
"	O
hard	B-Device
disk	I-Device
drive	I-Device
systems	O
still	O
in	O
use	O
.	O
</s>
<s>
His	O
areas	O
of	O
expertise	O
,	O
besides	O
luminescence	O
,	O
were	O
phosphor	O
technology	O
,	O
magnetics	O
and	O
liquid	B-Device
crystal	I-Device
systems	O
.	O
</s>
