Changes

After being promoted to Uraga bugyô from ''[[yoriai]]'' in 1853, he was named [[Shimoda bugyo|Shimoda bugyô]] in [[1854]] following the [[Convention of Kanagawa]] (which Isawa and three others signed on behalf of the shogunate), which opened [[Shimoda]] to American ships and sailors.

After being promoted to Uraga bugyô from ''[[yoriai]]'' in 1853, he was named [[Shimoda bugyo|Shimoda bugyô]] in [[1854]] following the [[Convention of Kanagawa]] (which Isawa and three others signed on behalf of the shogunate), which opened [[Shimoda]] to American ships and sailors.

In 1855, he was reassigned to the position of ''[[fushin bugyo|fushin bugyô]]''.<ref>Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 100.</ref>

In 1855, he was reassigned to the position of ''[[fushin bugyo|fushin bugyô]]''.<ref>Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 100.</ref> The following year, he was named ''[[metsuke]]'' and assigned to oversee matters of coastal defense (''kaibô'').<ref>Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 243.</ref>

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