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El sistema va ser inventat pel [[físic]] [[Akitsu Tanakadate]] el [[1885]] i és el predecesor del sistema de romanització més popular Kunreisiki ([[Kunrei-shiki]]).
<table width="300" align="center" border="1">
{| width="300" align="center" border="1"
<caption>Nipponsiki - ISO 3602 estricte</caption>
|+ Nipponsiki - ISO 3602 estricte
<tr>
|-----
<td>a</td>
| a || i || u || e || o
<td>i</td>
|-----
<td>u</td>
| ka || ki || ku || ke || ko
<td>e</td>
|-----
<td>o</td>
| sa || si || su || se || so
</tr>
|-----
<tr>
| ta || ti || tu || te || to
<td>ka</td>
|-----
<td>ki</td>
| na || ni || nu || ne || no
<td>ku</td>
|-----
<td>ke</td>
| ha || hi || hu || he || ho
<td>ko</td>
|-----
</tr>
| ma || mi || mu || me || mo
<tr> <td>sa</td>
|-----
<td>si</td>
| ya || (i) || yu || (e) || yo
<td>su</td>
|-----
<td>se</td>
| ra || ri || ru || re || ro
<td>so</td>
|-----
</tr>
| wa || wi || (u) || we || wo
<tr>
|-----
<td>ta</td>
| n || || ||
||
<td>ti</td>
|-----
<td>tu</td>
| ga || gi || gu || ge || go
<td>te</td>
|-----
<td>to</td>
| za || zi || zu || ze || zo
</tr>
|-----
<tr>
| da || di || du || de || do
<td>na</td>
|-----
<td>ni</td>
| ba || bi || bu || be || bo
<td>nu</td>
|-----
<td>ne</td>
| pa || pi || pu || pe || po
<td>no</td>
|-----
</tr>
| kya || || kyu ||
|| kyo
<tr>
|-----
<td>ha</td>
| sya || || syu ||
|| syo
<td>hi</td>
|-----
<td>hu</td>
| tya || || tyu ||
|| tyo
<td>he</td>
|-----
<td>ho</td>
| nya || || nyu ||
|| nyo
</tr>
|-----
<tr>
| hya || || hyu ||
|| hyo
<td>ma</td>
|-----
<td>mi</td>
| mya || || myu ||
|| myo
<td>mu</td>
|-----
<td>me</td>
| rya || || ryu ||
|| ryo
<td>mo</td>
|-----
</tr>
| gya || || gyu ||
|| gyo
<tr>
|-----
<td>ya</td>
| zya || || zyu ||
|| zyo
<td>(i)</td>
|-----
<td>yu</td>
| dya || || dyu ||
|| dyo
<td>(e)</td>
|-----
<td>yo</td>
| bya || || byu ||
|| byo
</tr>
|-----
<tr>
| pya || || pyu ||
|| pyo
<td>ra</td>
|-----
<td>ri</td>
| kwa || || ||
||
<td>ru</td>
|-----
<td>re</td>
| gwa || || ||
||
<td>ro</td>
|}
</tr>
<tr>
<td>wa</td>
<td>wi</td>
<td>(u)</td>
<td>we</td>
<td>wo</td>
</tr>
<tr>
<td>n</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>ga</td>
<td>gi</td>
<td>gu</td>
<td>ge</td>
<td>go</td>
</tr>
<tr>
<td>za</td>
<td>zi</td>
<td>zu</td>
<td>ze</td>
<td>zo</td>
</tr>
<tr>
<td>da</td>
<td>di</td>
<td>du</td>
<td>de</td>
<td>do</td>
</tr>
<tr>
<td>ba</td>
<td>bi</td>
<td>bu</td>
<td>be</td>
<td>bo</td>
</tr>
<tr>
<td>pa</td>
<td>pi</td>
<td>pu</td>
<td>pe</td>
<td>po</td>
</tr>
<tr>
<td>kya</td>
<td></td>
<td>kyu</td>
<td></td>
<td>kyo</td>
</tr>
<tr>
<td>sya</td>
<td></td>
<td>syu</td>
<td></td>
<td>syo</td>
</tr>
<tr>
<td>tya</td>
<td></td>
<td>tyu</td>
<td></td>
<td>tyo</td>
</tr>
<tr>
<td>nya</td>
<td></td>
<td>nyu</td>
<td></td>
<td>nyo</td>
</tr>
<tr>
<td>hya</td>
<td></td>
<td>hyu</td>
<td></td>
<td>hyo</td>
</tr>
<tr>
<td>mya</td>
<td></td>
<td>myu</td>
<td></td>
<td>myo</td>
</tr>
<tr>
<td>rya</td>
<td></td>
<td>ryu</td>
<td></td>
<td>ryo</td>
</tr>
<tr>
<td>gya</td>
<td></td>
<td>gyu</td>
<td></td>
<td>gyo</td>
</tr>
<tr>
<td>zya</td>
<td></td>
<td>zyu</td>
<td></td>
<td>zyo</td>
</tr>
<tr>
<td>dya</td>
<td></td>
<td>dyu</td>
<td></td>
<td>dyo</td>
</tr>
<tr>
<td>bya</td>
<td></td>
<td>byu</td>
<td></td>
<td>byo</td>
</tr>
<tr>
<td>pya</td>
<td></td>
<td>pyu</td>
<td></td>
<td>pyo</td>
</tr>
<tr>
<td>kwa</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>gwa</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
Nota:
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