Kaoru Oka

444 total citations
15 papers, 331 citations indexed

About

Kaoru Oka is a scholar working on Surgery, Molecular Biology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Kaoru Oka has authored 15 papers receiving a total of 331 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 6 papers in Molecular Biology and 6 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Kaoru Oka's work include Urinary and Genital Oncology Studies (6 papers), Bladder and Urothelial Cancer Treatments (5 papers) and Urological Disorders and Treatments (4 papers). Kaoru Oka is often cited by papers focused on Urinary and Genital Oncology Studies (6 papers), Bladder and Urothelial Cancer Treatments (5 papers) and Urological Disorders and Treatments (4 papers). Kaoru Oka collaborates with scholars based in Japan and Greece. Kaoru Oka's co-authors include Yasuaki Takehara, Akira Tosaka, Yasuhisa Fujii, Hideaki Sekine, Kazuhiro Ohya, Satoshi Kitahara, Tatsuya Machida, Kazuhiro Ishizaka, Yoh Matsuoka and Hiroyuki Oshima and has published in prestigious journals such as Cancer, The Journal of Urology and European Urology.

In The Last Decade

Kaoru Oka

13 papers receiving 311 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Kaoru Oka Japan	7	237	130	107	95	52	15	331
Norio Meguro Japan	10	251 1.1×	172 1.3×	29 0.3×	117 1.2×	20 0.4×	41	358
W. S. Cheng Singapore	9	343 1.4×	151 1.2×	68 0.6×	105 1.1×	10 0.2×	14	386
Hans‐Christoph Klingler Austria	9	422 1.8×	288 2.2×	24 0.2×	98 1.0×	74 1.4×	23	490
V. Ray United States	9	113 0.5×	43 0.3×	17 0.2×	95 1.0×	22 0.4×	16	314
Eliza M. Raymundo United States	7	129 0.5×	61 0.5×	18 0.2×	43 0.5×	17 0.3×	14	251
Viktor Eret Czechia	8	202 0.9×	166 1.3×	10 0.1×	59 0.6×	23 0.4×	65	289
Henry L. Hadley United States	11	143 0.6×	32 0.2×	51 0.5×	282 3.0×	171 3.3×	19	428
Nicolas Branger France	9	158 0.7×	40 0.3×	12 0.1×	75 0.8×	30 0.6×	41	265
Khaled Ajib Canada	10	185 0.8×	30 0.2×	13 0.1×	68 0.7×	90 1.7×	31	277
Anthony J. Esposito United States	8	119 0.5×	33 0.3×	50 0.5×	50 0.5×	23 0.4×	15	227

Countries citing papers authored by Kaoru Oka

Since Specialization

Citations

This map shows the geographic impact of Kaoru Oka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kaoru Oka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kaoru Oka more than expected).

Fields of papers citing papers by Kaoru Oka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kaoru Oka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kaoru Oka. The network helps show where Kaoru Oka may publish in the future.

Co-authorship network of co-authors of Kaoru Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Kaoru Oka. A scholar is included among the top collaborators of Kaoru Oka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kaoru Oka. Kaoru Oka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

15 of 15 papers shown

Kobayashi, Shuichiro, Kaoru Oka, Tatsuya Machida, & Kazuhiro Ishizaka. (2006). 5 YEARS INTRAVESICAL INSTILLATION WITH MITOMYCIN-C AND PIRARUBICIN AS A PROPHYLACTIC TREATMENT FOR SUPERFICIAL BLADDER CANCER. The Japanese Journal of Urology. 97(4). 636–641. 1 indexed citations

Kobayashi, Shuichiro, et al.. (2004). [Alveolar rhabdomyosarcoma originating in spermatic cord: a case report].. PubMed. 50(9). 653–5. 3 indexed citations

Matsuoka, Yoh, Tatsuya Machida, Kaoru Oka, & Kazuhiro Ishizaka. (2002). Clear cell adenocarcinoma of the urinary bladder inducing acute renal failure. International Journal of Urology. 9(8). 467–469. 15 indexed citations

Matsuoka, Yoh, Kazuhiro Ishizaka, Tatsuya Machida, Tsuyoshi Kobayashi, & Kaoru Oka. (2002). TREATMENT OF 2019 CASES WITH UPPER URINARY TRACT CALCULI USING A PIEZOELECTRIC LITHOTRIPTOR ESL-500A. The Japanese Journal of Urology. 93(3). 476–482.

Tosaka, Akira, Yasuhisa Fujii, & Kaoru Oka. (1997). Evaluation of Transrectal Voiding Ultrasonography in Men with Micturition Difficulties without Apparent Organic Obstruction of the Lower Urinary Tract. European Urology. 32(4). 420–424. 4 indexed citations

Tosaka, Akira, Yasuhisa Fujii, & Kaoru Oka. (1997). Evaluation of transrectal voiding ultrasonography in men with micturition difficulties without apparent organic obstruction of the lower urinary tract.. PubMed. 32(4). 420–4. 6 indexed citations

Fujii, Yasuhisa, et al.. (1995). Benign Renal Tumors Detectedamong Healthy Adults byAbdominal Ultrasonography. European Urology. 27(2). 124–127. 131 indexed citations

Fujii, Yasuhisa, Akira Tosaka, Hideaki Sekine, et al.. (1992). ASYMPTOMATIC MULTILOCULAR CYSTIC RENAL CELL CARCINOMA. The Japanese Journal of Urology. 83(8). 1270–1275. 1 indexed citations

Tosaka, Akira, Kazuhiro Ohya, Satoshi Kitahara, et al.. (1990). Incidence and Properties of Renal Masses and Asymptomatic Renal Cell Carcinoma Detected by Abdominal Ultrasonography. The Journal of Urology. 144(5). 1097–1099. 116 indexed citations

10.

Fukui, Iwao, et al.. (1988). A STUDY OF PREVENTION OF EJACULATORY DISTURBANCE AFTER RETROPERITONEAL LYMPH NODE DISSECTION FOR THE TESTICULAR TUMOR. The Japanese Journal of Urology. 79(12). 1982–1990. 4 indexed citations

11.

Fukui, Iwao, Hideaki Sekine, Kazunori Kihara, et al.. (1987). Sequential instillation therapy with mitomycin C and adriamycin for superficial bladder tumors. Cancer Chemotherapy and Pharmacology. 20(S1). S52–5. 6 indexed citations

12.

Fukui, Iwao, Hideaki Sekine, Takumi Yamada, et al.. (1987). Carcinoma in situ of the urinary bladder. Effect of associated neoplastic lesions on clinical course and treatment. Cancer. 59(1). 164–173. 21 indexed citations

13.

Yamada, Takumi, Iwao Fukui, Hideaki Sekine, et al.. (1986). STATISTICAL OBSERVATION ON OUR BLADDER TUMOR REGISTRY. The Japanese Journal of Urology. 77(4). 612–617. 1 indexed citations

14.

Kitahara, Satoshi, Kaoru Oka, & Hideaki Sekine. (1985). 4 CASES OF MÜLLERIAN DUCT CYST. The Japanese Journal of Urology. 76(3). 415–421. 2 indexed citations

15.

Oka, Kaoru, et al.. (1982). Transrectal Longitudinal Ultrasonotomography of the Prostate by Electronic Linear Scanning. The Journal of Urology. 127(1). 62–65. 20 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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