Katakura Genshū / Kakuryō 片倉元周 / 片倉鶴陵 (Sino-Japanese reading: Piàncāng Yuánzhōu; zì Shuhaku / Zhōubó 周伯; hào Kakuryō / Hèlíng 鶴陵), 1751–1822, Edo-period Japanese physician. A leading second-generation figure of the Kagawa obstetrical school founded by 賀川玄悅 (賀川玄悅). Wrote the Sǎnkē fāméng 產科發蒙 (KR3ei065, 1799), an obstetrical compendium that systematised and extended the Kagawa-school techniques.
Native of Kōzuke 上野 (modern Gunma); after extensive medical training relocated to Edo (where his second preface identifies him as a pupil of the shogunal Taki / 多紀氏 / Tamba house) and established a successful obstetrical practice. The Sǎnkē fāméng of Kansei 11 (1799) is his magnum opus, dedicated to the systematic teaching of the Kagawa techniques to a wider audience. Katakura also authored the Méilì xīnshū 黴癘新書 (a major Edo-Japanese syphilis treatise), the Shānghán qǐwēi 傷寒啟微 on cold-damage, and the Qīngnáng suǒtàn 青囊瑣探 (KR3eq053, Kyōwa 1–2 = 1801–1802) — a three-juǎn clinical-philological miscellany incorporating Dutch-learning anatomy and pharmacology. Within the Kanripo corpus: KR3ei065 Sǎnkē fāméng (撰), KR3eq053 Qīngnáng suǒtàn (撰).